KAKU BLUETOOTH HANDSET The KAKU KSC-388W Bluetooth earphone is a unique wireless earphone. This handset is compatible with most Bluetooth enabled phones. Exceptional comfort of work is ensured by a high-quality speaker and microphone, ensuring the highest quality sound. A physical function button makes it easy to control the handset. The unique, well-thought-out design makes the handset perfectly adapt to the shape of the ear, so it can also be used during active leisure time without fear of accidental removal. Function key operations:  Switching on and off - hold for approx. 3 seconds Pairing the device - hold for about 5 seconds Answer / hang up - click Reject a call - double click Redialing the number - double click Change language - double click during pairing mode Evaporation: Make sure the handset is turned off. Press and hold the function key for about 5 seconds, until the red and blue LEDs start flashing alternately.  Turn on the Bluetooth function on your device and scan. The phone should find a device named "KAKU-MJ". Connect the device with the handset. If the connection requires a password, enter "0000". LED statuses: Pairing: alternating blinking of red and blue LED Pairing successful: blue LED Charging: red LED Device fully charged: blue LED   PRODUCT FEATURES: - 100% original- Easy to use- Range: up to 10m- Bluetooth version: 5.0- Talk time: approx. 4h- Music playback: approx. 4h- Standby time: approx. 120h- Charging time: approx. 1h- Built-in battery: 70 mAh- Weight: 6.7g- Size: 53 x 25 x 15 mm- connector: Micro USB   SET CONTAINS: 1 x KAKU Bluetooth Earphone 1 x Micro USB 0.2m Cable 1 x Earhook