Motorcycle Helmet Intercom Bluetooth 5.0 CSR Headset 2000mah Battery Anti-Interference Handsfree Kit for Full/Half Face Helmet -- Talking distance:* BT-12S: Bluetooth connection with phone APP long distance conversation.* BT-12B: Intercom talking between 2 players at 500M. Features: Precise operation With the voice prompt function, it can help you achieve more precise operations, reduce errors and faster communication. Clear voice U-band propagation is relatively stable, and the frequency band is wider, and the anti-jamming ability is strong, ensuring a clear conversation. Easy to use This product adopts physical button pressure pattern to ensure that you can clearly see the button operation when wearing gloves to prevent misuse. Waterproof With well-designed waterproof technology, the waterproof level of this headset has reached IPX6 without fear of wind and rain. Wide range of application This helmet headset is suitable for many types of helmets on the market, such as full face helmets, off-road helmets, half-open helmet, sun helmets, retro helmets, etc. Technical data: Type: motorcycle Bluetooth headphones Material: plastic + electrical components Battery: built-in 2000mAh battery Charging time: le; 2h Call time: 80h Music playing time: 60h. Standby time: ge; 240h Bluetooth version: Bluetooth CSR5.0 Waterproof level: IPX6 Size: 103*26*50mm/4.05*1.02*1.97 inch (L*W*H) With 2 different helmet microphones for full face helmet and half face helmet