Sports Wireless Bluetooth 4.1 Headphone with Microphone – Neckband Style / CSR8645 / Hands-free / Sweat Resistance / Magnetic Suction / 19 Hours of Play Time
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.
Advanced Neodymium 10mm drivers supports high resolution sound.
Long duration time, provide you 19 hours music play or talk time.
BT working range: 10m
Frequency range: 2.4GHz-2.48GHz
Mic Sensitivity: -42dB±3dB
Impedance : 16Ω
Waterproof grade: IPX4
Battery capacity: 260mAh
Working time: up to 19 hours
Standby time: about 520 hours
Charging time: about 2.5 hours
Charging voltage: micro USB 3.7V
Headphone length: 89cm / 35in
Headphone weight: 27g / 0.9oz
Package size: 20 * 14 * 3.0cm / 7.87 * 5.51 * 1.18in
Package weight: 140g / 4.93oz
1 * Headphone
1 * USB cable
3 * Pairs of Earmuffs
1 * User Manual