800mAH battery that can last 10-12 hours on a full chargeNo transmission interference up to speeds of 80-100km/hAble to simultaneously pair with 2 different Bluetooth enabled mobile phonesHigh-fidelity Bluetooth transmission of music and voice callsAutomatic reminders that your battery is low and needs recharging over the Bluetooth headsetBluetooth version 5.0Bluetooth Communication Distance : 10 metersFuction : Music Switching , Answer and end callsX7 can be connected to two Bluetooth devices (two mobile phonesora mobile phone ), do not have the front and rear seats talkback function, the phone can be manually answered only , it is actually a basic version for riding.Colour:blueMaterial:plasticPackage Contents:1 x Bluetooth headset1 x Soft Microphone(For integral/full face helmet)1 x Hard Microphone(For open/half face helmet)1 x Charging cable2 x Mounting Brackets1 set x Speaker Nylon Sticker1 x Chinese and English manualOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.