Motorcycle Helmet Bluetooth Headsets IP67 Waterproof Wireless Headphones Set Wireless Call for Voice Control Cycling -- Motorcycle Bluetooth Helmet Headset Wireless Headphones Wireless Call Stereo Kit Anti-Interference Waterproof Earphone with RGB Light Specifications: Type: Motorcycle Bluetooth Headphones Material: Plastic + Electric Components Battery: Built-in 3.7V 1100mAh Lithium Polymer Battery Charging Time: le; 2.5h Connection time: 30h Standby time: about 350 months Bluetooth version: 5.3 Bluetooth Waterproof level: IPX67 Size: 76 * 36 * 20 mm (L * W * H) Transmission distance: 20 m (without obstacles) Volume control method: Touch the button to adjust Charging voltage: 5V /1A Headphone jack: TYPE-C Playing time: about 20H (music maximum volume) Frequency response: 100Hz ~ 18KHz Features: - Precise operation Supports voice assistant function, which can help you achieve more precise operation, wake up the mobile phone voice assistant, and voice control reduces the number bugs and is more convenient. - Easy to instore Separate installation, simple and safe charging is more convenient - Easy to use This product adopts physical button pressure pattern to ensure that you can clearly see the button operation while wearing gloves to prevent misuse. - Waterproof With Using well-designed waterproof technology, the waterproof level of this headset has reached IPX67 without fear of wind and rain. - Smart Connection You can connect two devices at the same time, freely select, switch devices with one button to listen to songs, navigate and answer calls. -CVC intelligent noise reduction effer subwoofer. Intelligent active noise reduction system, microphone, DSP and CVC triple noise reduction create noise, so you can enjoy good sound calmly.