Features: 1.Lightweight and compact, easy to carry and very convenient 2.It is comfortable to wear all day and the ergonomic design is in line with the depth of the ears without pain after hearing 3.Two earphones are connected to one device together, you can enjoy binaural stereo effect alone, or watch dramas and listen to songs with friends 4.Two earphones are connected to different devices, which is equivalent to having two single ear Bluetooth-compatible earphones. 5.Automatic pairing, automatic power on and off, a large-capacity charging warehouse that integrates storage and charging, and automatically turns on when it is out, and turns off when it is in. Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement Description: 1.BT version: 5.0 2.Communication distance: 10 m 3.Speaker specifications: Φ8mm 32ohm 4.Frequency response: 20-20KHz 5.Signal to noise ratio: 85dB 6.Distortion: 1 7.Transmission distance barrier-free: 10m Package List: 1*Bluetooth-compatible Headset