STN-770 magnetic head sport Bluetooth metal headset necklacace for iphone 7 8 x samsung s8 note 8 VS hbs 900 910

STN-770 magnetic head sport Bluetooth metal headset necklacace for iphone 7 8 x samsung s8 note 8 VS hbs 900 910   original REMAX Bluetooth 4.1 Earphone Wireless Invisible Head Phone Earbud  For iPhone 7 8 x samsung s7 s8 note 8 huawei         DESCRIPTION Channel: StereoBluetooth protocol: 4.2Function: Voice controlUse: neck hanging type The headset has the following major features:① Bluetooth function: for mobile phone Bluetooth connection, the phone supports music player, answer and call function.② built-in battery: rechargeable battery can be used, listening to music can be used for about 4 hours, charging time of 2 hours or so, built-in direct charge, not removable.③ use: the phone Bluetooth function is turned on, while opening the headset Bluetooth, when the phone below the Bluetooth device can display the product model can be connected.