Features: 1. Utilizes Bluetooth 4.2+EDR technology for strong signal transmission and low power consumption, compatible with most Bluetooth devices. 2. Supports automatic answer function with option to switch to manual answering. Built-in high-quality noise-reducing microphone enables convenient hands-free calling, answering, and hanging up. 3. High sound fidelity with controls for song navigation, volume adjustment, play/pause, and redial functions. Simple and intuitive operation. Specification: Connection Name: BT Bluetooth Version: V4.2+CSR Transmission Distance: 10 meters (may vary due to environmental conditions and device compatibility) Bluetooth Pairing Distance: 20-30 meters (varies by device) Standby Time: 120 hours Play Time: 15 hours Charging Time: 1 hour Battery: 3.7V/500mAh Microphone Range: 1 meter Frequency Range: 2402 MHz - 2480 MHz Product Features: - Helmet headset with Bluetooth connectivity - Designed for motorcycle helmet use - Wireless headset for hands-free communication while riding - Compatible with motorcycle helmets - Enables safe and convenient calling during travel - Lightweight and comfortable fit - Easy to install and use - Noise-reducing microphone for clear audio - Ideal for riding and outdoor activities - Universal fit for most helmets Package Includes: 1 x Motorcycle Helmet Headset 1 x Charging Cable 1 x User Manual 1 x Mic Cover 2 x Static Stickers