Features: 1. Utilizes the latest CSR 4.0+EDR Bluetooth technology, providing strong signal transmission, ultra-low power consumption, and compatibility with most Bluetooth devices; 2. Supports automatic answer function and can be switched to manual answering mode for safe and convenient use; built-in high-quality anti-interference microphone enables 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 conditions 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 Range: ≤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