ATH-CKS5TW User Manual Wireless Headphones
Introduction Thank you for purchasing this Audio-Technica product. Before using the product, please read through the Quick Start Guide and Caution Guide, as well as this user manual when necessary, to ensure that you use the product correctly. Safety precautions Although this product was designed to be used safely, failing to use it correctly may result in an accident. To ensure safety, observe all warnings and cautions while using the product.
Safety precautions Cautions for charging case •• Do not disassemble, modify or attempt to repair the product to avoid electric shock, malfunction or fire. •• Do not cover the product with a cloth to avoid fire or injury by overheating. •• Do not subject the product to strong impact to avoid electric shock, malfunction or fire. •• When charging, make sure to use the included USB charging cable. •• Do not handle the product with wet hands to avoid electric shock or injury.
Safety precautions Cautions for rechargeable battery The headphones are equipped with a rechargeable battery (lithium ion battery). The charging case is equipped with a rechargeable battery (lithium polymer battery). •• If battery fluid gets into eyes, do not rub them. Rinse thoroughly with clean water such as tap water and consult a doctor immediately.
Notes on use •• Be sure to read the connected device’s user manual before use. •• Make sure to hold the plug when connecting and disconnecting the USB charging cable. The USB charging cable may become severed or an accident may occur if you pull on the cable itself. •• Audio-Technica will not be liable in any way for any loss of data in the unlikely event that such losses should occur while using the product. •• When you are not using the USB charging cable, disconnect it from the charging case.
For a more comfortable Bluetooth® communication experience The effective communication range of this product varies depending on obstructions and radio wave conditions. For a more enjoyable experience, please use the product as close as possible to the Bluetooth device. To minimize noise and sound disruptions, avoid placing your body or other obstacles between the product’s antenna (R side) and the Bluetooth device.
Part names and functions Headphones L/R (left/right) indicator Multifunction buttons Use to turn the power supply ON/OFF, play/pause music, and answer/end phone calls. Also use to adjust the volume (+/–). The L-side button has a protrusion for distinguishing between the left and right. Indicator lamp Housing Displays the operating status and battery level of the headphones.
Charging the battery Charging the headphones and charging case • Fully charge the battery when using for the first time. • If the rechargeable battery power is running low, the product will beep through the headphones, and the indicator lamps of the headphones will flash in red. In this case, charge the battery. • It takes about 2 hours maximum to fully charge the headphones, about 3.5 hours maximum to fully charge the charging case. (This time may vary depending on usage conditions.) 1.
Charging the battery • During charging, the 3 charging indicator lamps light and flash as follows to indicate the battery level of the charging case (it may take several seconds for the indicator lamps to light). Battery (charging) status of the charging case Charging indicator lamps Lamp display White Off Light pattern Only left lamp flashing Only center lamp flashing Only right lamp flashing (Fully charged) Lit in white for 10 seconds, and then turns off 4.
Charging the battery Charging headphones without the charging cable A rechargeable battery is built into the charging case. If you have charged the charging case, you can charge the headphones without using the USB charging cable. • If the rechargeable battery power is running low, the product will beep through the headphones, and the indicator lamps of the headphones will flash in red. 1. Place the headphones in the charging case.
Connecting via Bluetooth To connect the product to a Bluetooth device, the product needs to pair (register) with the device. Pairing a Bluetooth device • Read the user manual for the Bluetooth device. • Place the Bluetooth device within 1 m (3.3') of the product to perform pairing correctly. • To confirm the progress of the pairing process, wear the product while performing this procedure and listen for the confirmation tone. 1. Remove the headphones (L (left) and R (right)) from the charging case.
Using the product The product can use Bluetooth wireless technology to connect to your device and play music, receive phone calls, etc. Use the product for whichever of these purposes suits your needs. Note that Audio-Technica cannot guarantee the operation of displays, such as the battery level display, or applications via Bluetooth devices. Power supply ON/OFF Power supply Operation Indicator lamps Remove from the charging case and power turns on automatically.
Using the product Wearing the product Insert the side of the product marked "L" (LEFT) into the left ear, and the side marked "R" (RIGHT) into the right ear as shown in the figure. • When worn on the ear while slightly bending the 3D loop support included with the headphones, the fit is stable. Attaching/Removing the silicone rings The 3D loop supports are attached to the headphones to provide better fit and stability. Use the included silicone rings as needed. 1.
Using the product Listening to music • To connect for the first time, pair the product and your device via Bluetooth wireless technology. If you have already paired the product and your Bluetooth device, turn on the Bluetooth device’s Bluetooth connection before turning on the product. • Use your Bluetooth device to start playback, referring to the device’s user manual as necessary. Multifunction button (R (right) side) Press Play/pause Plays or pauses music.
Using the product Talking on the phone • If your Bluetooth device supports telephone features, you can use the microphone built into the product to talk on the phone. • When your Bluetooth device receives a phone call, a ring tone will be heard through the headphones. • If a call is received while you are listening to music, music playback is paused. When you finish the call, music playback resumes.
Using the product App for smartphones You can use Audio-Technica’s app for smartphones for more convenient use of the product. https://app.at-globalsupport.com Indicator lamps on the headphones The indicator lamp on each headphone indicates the product's status, as explained below.
Voice guidance The R (right) headphone plays English voice guidance in the following situations. Situation Voice guidance Power is turned on Power on Power is turned off Power off Bluetooth is connected Bluetooth connected Bluetooth is disconnected Bluetooth disconnected Battery level is low Low battery Cleaning Get into the habit of regularly cleaning the product to ensure that it will last for a long time. Do not use alcohol, paint thinners, or other solvents for cleaning purposes.
Eartips Eartip size The product includes silicone eartips in 4 sizes (XS, S, M, and L). At the time of purchase, the M-size silicone eartips are attached. To ensure the best sound quality, select the eartip size that is best suited for you, and adjust the eartips inside your ears for a snug fit. It may be difficult to hear bass sounds if the eartips do not fit snugly in your ears.
Troubleshooting Problem Solution Power is not supplied. • Charge the product. Unable to pair. • Confirm that the Bluetooth device communicates using Ver. 2.1+EDR or higher. • Place the product and the Bluetooth device within 1 m (3.3') of each other. • Set the profiles for the Bluetooth device. For procedures on how to set profiles, refer to the Bluetooth device’s user manual. • Remove the pairing information for the Bluetooth device then pair the product with this device again.
Troubleshooting Problem Solution Sound is distorted / Noise is heard / Sound cuts out. • Turn down the volume. • Keep this product away from devices that emit radio waves such as microwaves and wireless routers. • Keep this product away from TVs, radios, and devices with built-in tuners. These devices can also be affected by the product. • Turn off the equalizer settings of the Bluetooth device. • Remove obstacles between the product and the Bluetooth device and place them closer together.
Specifications Headphones Type Dynamic Driver 10 mm Sensitivity 110 dB/mW Frequency response 5 to 40,000 Hz Impedance 16 ohms Microphone Type MEMS type Polar pattern Omnidirectional Sensitivity -40 dB (1 V/Pa, at 1 kHz) Frequency response 50 to 4,000 Hz Communication specifications Communication system Bluetooth version 5.0 Maximum RF output 10 mW EIRP Maximum communication range Line of sight - approx. 10 m (33') Frequency band 2.402 GHz to 2.
Specifications Other Power supply Headphones: DC 3.7 V lithium ion battery/ Charging case: DC 3.7 V lithium polymer battery Charging time Headphones: Approx. 2 hours* / Charging case: Approx. 3.5 hours* Operating time Continuous transmission time (music playback): Max. approx. 15 hours* (headphones), Max. approx. 45 hours* (if charging case is used in combination) Weight Headphones: Approx. 8 g (0.28 oz) (L side), approx. 8 g (0.28 oz) (R side) / Charging case: Approx. 60 g (2.
