Open wireless earphones surround the directional sound field, open design, only 18g, sweat-proof and waterproof, and have a short lifespan2. Comfortable to wear, no ear clips required, protect your ears from injury3. Surround directional sound field. The speaker adopts environmentally friendly physical diaphragm technology.4. The headset is only 18g, light and portable.5.120mah battery life, Bluetooth 5.0 chip, lower power consumption, longer battery life, IPX5 waterproof Specification Sound channel Two-channel (stereo) Battery Type Non-removable Language English Product Model VG09 Main Materials Abs Driver type Dynamic Application Scope Aviation,Gaming,Sport,Running,Audiophile Micphone Sensitivity -42d - B 5d - B Headphone Sensitivity 106d - B Bluetooth protocol V5.0 Compatible with Mobile phone,i - Phone Features Surround Sound Wearing type In-ear with ear hook Brands vdeo With Modem Function Waterproof,Voice Control,Noise Cancelling Bluetooth distance W/O obstacles 10m - 15m Bluetooth mode Hands free,Headset