ADAPT 660 Over-ear Bluetooth® headset with ANC User Guide
1 Contents Contents The ADAPT 660 headset.......................................................................................................................................................................................2 Package contents........................................................................................................................................................................................................3 Product overview..................................................
2 The ADAPT 660 headset The ADAPT 660 headset Maximize focus and productivity anywhere with the ultimate headset powered by EPOS AI™ for crystal clear calls, adaptive ANC and superior stereo sound. Enjoy a unique UC optimized solution with machine learning enhanced microphone performance. Adaptive ANC helps you regain concentration by monitoring your working environment and adjusts noise reduction accordingly; even reducing wind noise when outdoors.
3 Package contents Package contents ADAPT 660 Bluetooth headset Case BTD 800 USB or BTD 800 USB-C Bluetooth dongle USB cable with USB-A and micro-USB plug Audio cable with 2.5 mm and 3.
4 Product overview Product overview Overview of the headset Headband Bluetooth switch ANC switch Teams/Pairing button LEDs Microphone Audio socket USB socket ANC Microphones Touch pad Overview of the headset LED indications • Headset connected • Headset turned off 3x • Headset turns on • Bluetooth device found • Incoming call 3x • Headset turns off • Headset disconnected from mobile device/dongle • Incoming call (rechargeable battery is weak) Headset in pairing mode: searching for mobile device/don
5 Product overview Overview of the headset controls Ear cups Page Turns the headset on Turns the headset off 12 Touch pad Tap 2x 1s 2s Function Accepts a call 16 2 calls: Answers incoming & ends active call 19 Starts / pauses media playback 21 Turns TalkThrough on/off (ANC turned on) 15 Puts an active call on hold (pause) / unholds call 16 2 calls: Answers incoming & puts active on hold 19 2 calls: Toggles between two calls 19 Rejects a call 17 Ends a call 16 2 calls: Ends activ
6 Product overview Bluetooth switch Press Function Page Turns Bluetooth on 12 Turns Bluetooth off Teams/Pairing button Press Function Page Initiates a call 16 Invokes Microsoft Teams 20 Cancels pairing (Pairing mode) 8 2x Launches Smart Control app* 11 1s Activates Cortana 18 Pairs the headset with a Bluetooth device 8 4s Clears pairing list (Pairing mode) 30 * These functions are not supported by all connected Bluetooth devices.
7 Product overview Overview of the dongle BTD 800 USB BTD 800 USB-C Link LED Link LED Link button Link button USB-C plug USB-A plug Overview of the dongle LED indications 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x 3x Dongle in pairing mode: searching for headset Pairing successful Pairing failed Dongle tries to connect to a Bluetooth device Dongle and Bluetooth device connected Incoming call • Outgoing/active call • Media playback 3x Connected to Teams • Teams notification • Connecti
8 Getting started Getting started Pairing the headset with Bluetooth® devices ! CAUTION Danger of malfunction! The transmitted radio waves of mobile devices can impair the operation of sensitive and unprotected devices. X Only use Bluetooth where it is permitted. The headset complies with the Bluetooth 5.0 standard.
9 Getting started Pairing the headset via Bluetooth with a mobile device 1 2 3x X Twist the ear cups to turn on the headset. X Switch to position "I" to activate Bluetooth. 3 4 4s X Press and hold the Teams/Pairing button until the LEDs lights up white one after the other. The headset is in pairing mode. X Enable Bluetooth on your mobile device and start the search for Bluetooth devices – see instruction manual of your mobile device. 6 5 < 20 cm ... ... EPOS ADAPT 660 ...
10 Getting started Using the audio cable Use the audio cable for media playback when the battery is low or when Bluetooth transmission is restricted or not allowed. Bluetooth immediately turns off once the audio cable is connected to the headset. X Insert the small jack plug into the audio socket of the headset. Bluetooth is deactivated. X Connect the 3.5 mm jack plug to the audio output of your mobile device. To disconnect the audio cable: X Pull the plug out of the headset and your mobile device.
11 Getting started Installing the Smart Control app The free Smart Control app allows you to configure and update your headset and offers additional settings. X Open the App Store or Google Play app on your mobile device. X Search for "Sennheiser Smart Control". X Download and install the app. Sennheiser Smart Control Installing the EPOS Connect software The free EPOS Connect software allows you to configure and update your headset and offers additional settings.
12 Using the headset Using the headset ! CAUTION Hearing damage due to high volumes! Listening at high volume levels for long periods can lead to permanent hearing defects. X Set the volume to a low level before putting on the headset. X Do not continuously expose yourself to high volumes. Turning the headset on and connecting it 3x 3x X Twist the ear cups to turn on the headset. One LED flashes 3 times white. The headset automatically tries to connect to available paired Bluetooth devices.
13 Using the headset Adjusting and wearing the headset For good sound quality and best possible wearing comfort, adjust the headset. L R X Put the headset on so that the headband runs over the top of your head and the side with the R marking rests on your right ear. X Adjust the headset so that • your ears are comfortably covered by the ear pads, • you feel even, gentle pressure around your ears, • a snug fit of the headband on the head is ensured.
14 Using the headset Muting the microphone X Swipe • backward to mute or • forward to unmute the microphone. You hear a tone. Using Active Noise Cancellation (ANC) This headset provides attenuation of ambient noise using Active Noise Cancellation (ANC) technology. Special microphones optimize speech and reduce background noise. When "Adaptive ANC" is selected, active noise cancellation depends on the intensity of ambient noise.
15 Using the headset Turns ANC Maximum mode on Turns Adaptive ANC mode on; adjustable via the Smart Control App Turns ANC off Adjusting the Adaptive ANC The Smart Control app allows you to select different ANC modes that offer the optimal settings depending on the application/situation. Smart Control Adaptive For example, low-frequency noise can be suppressed, wind noise can be minimized or a possible feeling of pressure on the ears can be avoided. X Start the Smart Control app.
16 Making calls using the headset Making calls using the headset The following functions depend on the connected device. Making a call X Initiate the call on your connected device. Softphone OR X Press the Teams/Pairing button to initiate a call via your softphone. x If your call is not automatically transferred to the headset: X Search this function in the instruction manual of your connected device.
17 Making calls using the headset Reject / end a call 1s Rejects a call 1s Ends a call Redialing Swipe and hold: Redials the last number ADAPT 660 Bluetooth® headset
18 Making calls using the headset Using the voice assistant / Alexa / voice dial The last connected Bluetooth device will be used for voice assistant or voice dial. For Microsoft Cortana: see page 20. Before you can use Amazon Alexa as a voice assistant, you have to add the headset to the Amazon Alexa app – see below. 2s Activates voice assistant / Alexa / voice dial Cancels voice assistant / Alexa / voice dial Connecting the headset to Amazon Alexa X Start the Smart Control app on your mobile device.
19 Making calls using the headset Managing multiple calls You can use the Headset with up to two connected Bluetooth devices. x Softphone Two calls can be managed simultaneously. If you receive a call during an active call, a knock on tone will be played.
20 Using headset and dongle with Microsoft® Teams / Cortana Using headset and dongle with Microsoft® Teams / Cortana To use Microsoft Teams and Cortana with the headset: X Plug the dongle into the USB port of your computer – see page 8. If Microsoft Teams is already running, the blue LED changes to purple automatically. Invoking Microsoft® Teams and check notifications X Start Microsoft Teams on your computer. The dongle connects to Microsoft Teams and the LED blue LED changes to purple.
21 Listening to audio using the headset Listening to audio using the headset You can listen to audio via a connected device. The following functions depend on the connected device. X Play the media on your connected Bluetooth device. The LED on the dongle lights up blue.
22 Additional functions Additional functions Charging the headset battery X Connect the supplied USB cable to the USB socket of the headset and a USB socket of your computer. The battery is being charged. The LEDs light up depending on the battery status of the headset and turn off when the battery is fully charged.
23 Additional functions Verifying remaining battery power The remaining battery power is shown in the Smart Control app. Some mobile devices indicate the battery status of the headset. 80% You can retrieve information on the remaining battery power at any time – except while you are in a call: X Tap and hold the finger on the touch pad until a voice prompt is announced.
24 Additional functions Changing the sound effect You can use these settings to enhance the quality of your audio according to its genre or category. The sound effects are automatically activated when the headset and the mobile device are connected via Bluetooth or the USB cable. Smart Control Club To change the sound effect: X Start the Smart Control app. X Open Acoustic modes. X Swipe to your mode – see table below. X Go back to the home screen to save the setting in the app and for the headset.
25 Additional functions Enabling / disabling voice prompts, tones and changing language You can change voice prompts, tones and language via the Smart control app. You can also change these settings via EPOS Connect. Enabling / disabling voice prompts and tones X Start the Smart Control app. X Go to Settings. X Tap on Tone & Voice prompts. Smart Control X Tap on: Off Tone & Voice prompts Tone only Tone & Voice prompts • Off deactivates tones and voice prompts (few exceptions e. g.
26 Additional functions If you leave the Bluetooth range The range between headset and Bluetooth device is device dependent. The transmission range largely depends on environmental conditions such as wall thickness, wall composition etc. With a free line of sight, the transmission range of most Bluetooth devices is up to 25 meters. 5 min ~25 m If the audio quality deteriorates e. g.
27 Maintaining the products and updating the firmware Maintaining the products and updating the firmware Cleaning the products CAUTION Liquids can damage the electronics of the product! Liquids entering the housing of the device can cause a short circuit and damage the electronics. X Keep all liquids far away from the product. X Do not use any cleansing agents or solvents. X Only use a dry cloth to clean the product.
28 Maintaining the products and updating the firmware Updating the firmware of the products To update the installed firmware: X Install the free of charge EPOS Connect software (see page 11). Updating the firmware of the headset Updating the firmware of the dongle 1 1 USB-C USB-A USB-A X Connect the USB cable to your headset and your computer. The LEDs light up. X Plug the dongle into the USB port of your computer. The LED lights up. X Start EPOS Connect.
29 If a problem occurs ... If a problem occurs ... Problem Possible cause Solution Headset cannot be turned on Rechargeable battery empty X Recharge the headset battery. 22 Active Noise Cancellation (ANC) cannot be turned on Rechargeable battery empty X Recharge the headset battery. 22 Headset turned off X Turn the headset on. 12 No audio signal or drop outs Headset not paired with a Bluetooth X Pair the headset.
30 If a problem occurs ... Clearing the pairing list of the headset (Reset) 1 2 3x 4s X Press and hold the Teams/Pairing button until the LEDs 4s X Press and hold the Teams/Pairing button until the LED lights up white one after the other. The headset is in pairing mode. flashes red 3 times. The pairing list is cleared. The headset searches for Bluetooth devices to pair with – see page 8.
31 Specifications Specifications Headset - General Wearing style Over-ear, double-sided headband Dimensions (W x H x D) 63 x 136 x 174 mm / 2.48 x 5.35 x 6.85 in Weight 227 g / 8 oz Transducer principle Dynamic, closed Connectivity • Bluetooth 5.0 • audio cable (2.5 mm and 3.
32 Specifications Sennheiser Communications A/S Industriparken 27, DK-2750 Ballerup, Denmark www.eposaudio.com ® ADAPT BluetoothA01 headset Publ.
