Features: 1. Utilizes Bluetooth 4.2 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; includes built-in high-quality noise-reducing microphone for clear hands-free calling, answering, and hanging up. 3. High sound fidelity with controls for volume adjustment, track navigation, play/pause, and redial functions; simple and intuitive operation. Specification: Connection Name: BT Bluetooth Version: V4.2 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 Distance: 1 meter Frequency Range: 2402 MHz - 2480 MHz Product Features: Helmet Headset Bluetooth Helmet Headset for Motorcycle Motorcycle Bluetooth Headset Headset for Helmet Motorcycle Helmet Headset Package Includes: 1 x Motorcycle Helmet Headset 1 x Cable 1 x User Manual 1 x Mic Cover 2 x Static Stickers