Transmission range: 10 metersFunction: power display, voice control, call function, support music, multi-point connectionBluetooth protocol: 4.0Channel: StereoHow to use: neck-mountedWhether single or both ears: bilateral stereoColor: black, white, gold, red, blue, pinkBasic InformationProduct Size: 20.6 x 16.4 x 3.2 cmModel: HBS-800product descriptionHBS-800 Stereo Neckband Bluetooth HeadsetProvide ANC (eliminating ambient noise - also known as active noise reduction) to bring you a new quiet space in a noisy environment.Support apt-X (lossless audio transmission technology), can also enjoy CD-level music through Bluetooth headset.In 2013, it was the only Bluetooth headset that won two authoritative design awards (German Red Dot Design Award, America's Best Design Award).With ultra-light space metal, any bending of the product can be restored.Mobile phone anti-theft function: more than 8m through the vibration prompt.Long standby time, so you have less trouble charging frequently.iPhone power display makes management easier.Friendly voice prompts, the first time to master the various states of the headset.