Business Wireless Bluetooth Headset Telescopic Type Collar Clip HD Sound Quality Earphone with Mic - Black

• 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

• Chinese and English switching

• Headphone power display

• Two mobile phones can be connected at the same time

Specification:

• Headphone model: K50

• Headphone chip: BK

• Bluetooth version: V4.1

• Transmission distance: 10 meters

• Transmission audio: Class2 (-6dbm-4dbm)

• Charging voltage: DC5V

• Working voltage: 3.7V

• Battery capacity: 70mAh

• Charging time: about 2 hours

• Talk time: about 4 hours

• Listening time: about 4 hours (70% volume)

• Standby time: about 70 hours