Features: 1. Utilizes the latest CSR 4.0+EDR Bluetooth technology, providing strong signal transmission and ultra-low power consumption compatible with most Bluetooth devices; 2. Supports automatic answer function, with option to switch to manual answering; built-in high-quality anti-interference microphone for effective hands-free calling, answering, and hanging up; 3. High sound fidelity with controls for next/previous track, volume adjustment, play/pause, and automatic redial; simple and intuitive operation. Specification: Connection Name: BT Bluetooth Version: V4.2+CSR Transmission Distance: 10M (may vary due to environmental factors and mobile device compatibility) Bluetooth Pairing Distance: 20-30 meters (depending on the device) Standby Time: 120 hours Play Time: 15 hours Charging Time: 1 hour Battery: 3.7V/500mAh Microphone Distance: 1 meter Frequency Range: 2402 MHz - 2480 MHz Package Includes: 1 x Motorcycle Helmet Headset 1 x Cable 1 x User Manual 1 x Mic Cover 2 x Static Stickers