Includes JM CorporationÆs propriety Bluetooth 5.0 software package with improved on-highway volume levels and smoother operation with the latest versions of the iPhone and Android operating systems Designed for installation into most flip-up modular, full-face or open-face style helmets This helmet headset kit includes BT05 control head, USB charger/adapter cable, both boom & chin-bar style microphones, two slim-line high-output mount in helmet speakers, mounting clip, control head base, mounting hardware, Velcro/adhesive pads and complete installation/operation instructions Full function operating time: 8 hours Intercom mode: helmet to helmet Intercom mode talk distance: 600 m Time to full charge: 3 hours Full charge standby: 20 days Lithium-Ion battery capacity: 800 mAh Voice command dial :One-touch voice-command from cell phone contacts Helmet speakers: Stereo slim-line high-output Boom/chin-bar microphones: Noise cancelling Charge port connector type: USB Type-C Mounting features :Clip-on or adhesive backed mounting plate. BLUETOOTH HEADSET 5.0 UN