Fangrui Product Details 1)enjoy Music While Driving, Receive Gps Navigation Voice Instructions Frombluetooth Equipped Gps Device 2)answer Calls Automatically For Bickers Safety: 3)combined With Microphone, Pick Up Calls And Conduct Calls Directly. Handfree Talking 4)easy To Be Installed Into Helmets 1)bluetooth: Bluetooth V5.0, With /a2dp/ Avrcp And Hfp 2)rated Power: Rms 10mw X 2: 3)speaker Unit: 24ohm /30mm 4)frequency Response: 20hz-20khz 5)battery: 3. 7v250m Ah Li-polymer Battery, With , Ovp, Ocp Protection Pcb 6)play/talk Time: 19 Hours 7)charging Time: Dc 5v 2 Hours 8)functions: Next Song/previous Song, Volume Up/volume Down, Play/pausehang Off, Redial 9)could Activate Voice Assistant Like Or Voice For Commands Colour:black Material:plastic Note:these Are Headset For Motorcycle Helmet,not An Intercome,can Not Talk Or Connect With Each Other Before Pairing With Yourself Phone. Package Contents: 1 X Helmet Headset Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displa