• Special retractable earphone design, more convenient, no need to put the earphone on the ear for a long time

• Vibration reminder for incoming calls

• Intelligent voice prompt, caller number display

• Chinese and English switching

• Headphone power display

• Two mobile phones can be connected at the same time

Specification:

• Bluetooth-compatible model: K52

• Bluetooth-compatible version: 4.1

• Transmission distance: 10m

• Transmission audio: Class2 (-6dbm~2dbm)

• Charging voltage: DC 5V

• Working voltage: 3.7V

• Battery capacity: 70mAh

• Charging time: ≤2 hours

• Listening time:  about 5 hours

• Talk time: about 5 hours

• Standby time: about 70 hours

• Compatible with: for iPhone, for Huawei, for Samsung, for Xiaomi, and other Bluetooth-compatible device