Feature: 1. BT 5.0. It offers lower power consumption, stable connection and wide compatibility. 2. Detachable \u0026 Stable. The host and mic \u0026 headset are detachable, enabling you to choose hard and soft mic to fulfil your need. And the clamp base owns great elasticity, stable and durable. 3. 40mm Driver Unit. It offers stereo sound effect, bringing immersive music experience. 4. Double Noise Reduction. Adopting DSP and CVC technology, it effectively cancels noise, enabling you to make clear phone calls. 5. Auto Answering. It supports auto answering phone calls when there is no operation in 8 seconds. 6. Multifunctional Button \u0026 Knob. Press button to quickly answer, reject and end phone calls and switch among 3 modes--- intercom, music and FM modes. You can rotate knob to quickly achieve specific operation when in corresponding modes. 7. Wide Compatibility. The soft microphone is suitable for full face helmet and dual-sport helmet while hard microphone is suitable for flip-up helmet, 3/4 helmet and retro open face helmet. Specification: This Motorcycle Helmet BT 5.0 Headset supports intercoms, music and FM modes as well as auto answering phone calls to give you a safe driving experience. Besides, with built-in 700mAh battery, you can use it for a long time. And with soft and hard mic for choice, you can choose one of them according to your helmet. Feature: BT 5.0 It offers lower power consumption, stable connection and wide compatibility. Detachable & Stable The host and mic & headset are detachable, enabling you to choose hard or soft mic to fulfil your need. And the clamp base owns great elasticity, stable and durable. 40mm Driver Unit It offers stereo sound effect, bringing immersive music experience. Double Noise Reduction Adopting DSP and CVC technology, it effectively cancels noise, enabling you to make clear phone calls. Auto Answering It supports auto answering phone calls when there is no operation in 8 seconds. Multifunctional Button & Knob Press button to quickly answer, reject and end phone calls and switch among 3 modes--- intercom, music and FM modes. And you can rotate knob to quickly achieve specific operation when in corresponding modes. Wide Compatibility The soft microphone is suitable for full face helmet and dual-sport helmet while hard microphone is suitable for flip-up helmet, 3/4 helmet and retro open face helmet. Specification: Model: HY-01S Material: ABS, Acrylic, Silicone Driver unit: 40mm BT version: V5.0 Operating distance: 10m BT protocol: A2DP, AVRCP Transmitting sensitivity: -82dBm Noise reduction: CVC & DSP Decoding format: SBS & ACC Operating distance (2 BT intercoms): Up to 1000m (Open space) Max connecting number (Intercom mode): 2 Supporting language (Voice Prompt): Chinese, Korean, Italian, Portuguese, Spanish, German, English Battery capacity: 700mAh Charging time: 2.5hrs Waterproof level: IP65 Power adapter: DC 5V/1A Charging interface: Type-C Working voltage: 3V~4.2V Output power: +14-28dBm Working temperature: 5℃~40℃（41℉~104℉） Storage temperature: -20℃~50℃（-4℉~122℉） Item size: 8.4* 4.9* 2.8cm/ 3.31* 1.93* 1.1in Item weight: 49g/ 1.73oz Package size: 17* 11* 5.9cm/ 6.69* 4.33* 2.32in Package weight: 345g/ 12.17oz Package size: 18.5* 11* 7.8cm/ 7.28* 4.33* 4.33in Package weight: 563g/ 19.86oz Packing list: 2 * BT Host 2 * Velcro for Host 2 * Headset & Hard Mic 2 * Clamp base 2 * Hook & loop fasteners 8 * Velcro for Headset 2 * Charging cable 2 * Screw Driver 2 * User manual Package List: 2 * BT Host 2 * Velcro for Host 2 * Headset & Hard Mic 2 * Clamp base 2 * Hook & loop fasteners 8 * Velcro for Headset 2 * Charging cable 2 * Screw Driver 2 * User manual