Unique ring-necked design, no worry about falling off.
Built-in microphone enables hands-free calls.
Button control: easy to control volume, tracks and calls.
Sweat resistance: born for sports, free to enjoy music and make calls.
Magnetic suction: you can wear the headphone on the neck when in no use.
High fidelity stereo audio earphones enjoy entertainment.
BT working range: 10m
Frequency response: 20HZ-20KHZ
Frequency range: 2.4-2.4835GHz
Mic Sensitivity: -80dB
Speaker Sensitivity: 115dB
Battery capacity: 80mAh
Working time: 4 hours
Standby time: about 120 hours
Charging time: about 2 hours
Charging voltage: micro USB 3.7V
Headphone length: 89cm / 35in
Headphone weight: 27g / 0.9oz
Package size: 19 * 15.5 * 3.0cm / 7.48 * 6.10 * 1.18in
Package weight: 122.3g / 4.31oz
1 * Headphone
1 * USB cable