User Manual

Charging the battery

• Fully charge the battery when using it for the first time.

• When the rechargeable battery is running low, the product will sound 2 sets of 2 beeps through the headphones, and

the indicator lamp will flash in red. When these beeps sound, charge the battery.

• It takes about 5 hours to charge the battery fully (this time may vary depending on usage conditions).

• While the battery is charging, the product's Bluetooth connection remains disabled and therefore the product's

Bluetooth function cannot be used.

1. Connect the included USB charging cable (micro USB Type-B side) to the product's battery jack.

• The included USB charging cable is designed for exclusive use with the product. Do not use any other USB

charging cable.

• When inserting the included USB charging cable into the USB port or battery jack, check that the jack is facing in

the correct direction before inserting it directly (horizontally).

2. Connect the included USB charging cable (USB Type A-side) to the computer to start charging.

• While charging, the indicator lamp lights as follows (it may take several seconds for the indicator lamp to light).

Lit in red: Charging

Unlit: Charging complete

3. When charging is complete, disconnect the included USB charging cable (USB Type-A side) from the computer.

4. Disconnect the included USB charging cable (Micro USB Type-B) from the battery jack.

• If you charge the product with its power on, it will turn off while the product is charging. After charging is

complete, the product turns back on when you remove the included USB charging cable.

Battery jack

USB port

USB Type-A

USB charging cable

(included)

Micro USB Type-B

Computer