GoLoud NKBT930 Wireless Neckband

NKBT930 Stereo Wireless Neckband Sport Earphone HD Stereo Headset handsfree Magnetic HeadphonesDeliver stunning sound for an enjoyable listening experience.- Built-in large capacity battery for up to 10-12 hours working time and 100 hours standby time.- Works with Bluetooth 5.0 chips to ensure stable and fast connection.- IPX5 life waterproof rate can keep the sweat far away- Ergonomically designed earphones for long-time comfort.- Magnetic design for easy store.

BT version: 5.0

Transmission distance: 10m (accessible)

Waterproof: IPX5

Battery: 3.7V / 135mAh

Call time: 10~12hours

Standby time: about 300 hours

Charging time: about 2 hours

Speaker sensitivity: 98dB

Frequency response range: 20-20kHz.