Waterproof wireless Bluetooth-compatible motorcycle helmet headphones

Reference Title: Motorcycle helmet with Bluetooth wireless intercom, earphones, speaker, and hands-free function for MP3/MP4 players and smartphones. Features: 1. Listen to your music wirelessly with built-in Bluetooth technology. 3. Hands-free function for complete freedom of movement. 4. Built-in rechargeable Li-ion battery for long battery life. 5. CSR 4.0 Bluetooth chip for high-fidelity sound. 6. Battery level display on iPhone to know when to recharge. 8. Audible reminder function for easy device programming. Specifications: Material: Plastic Color: Black Charging cable length: 80 cm (approx.) Bluetooth version: V4.0 + EDR Frequency range: 2.4026 GHz - 2.480 GHz Range: 10 m (varies depending on environment and compatible Bluetooth device) Microphone range: 1 meter Lithium battery: 3.7 V / 150 mA Charging voltage: 5 V Charging time: 1 hour Standby time: approx. 160 hours Continuous use time: approx. 8 hours Bluetooth name: Music Hat Quantity: 1 unit (other accessories shown in the picture are not included) Note: 1. Conversion: 1 cm = 10 mm = 0.39 inch 2. Please allow 0-1 cm error due to manual measurement. 3. The actual color of the item may differ slightly from the color shown on your monitor. Package contents: 1 x Bluetooth compatible headset (no retail packaging), 1 x micro USB charging cable, 1 x user manual