Features: 1. Utilizes Bluetooth 4.2+EDR technology for stable signal transmission and low power consumption, compatible with most Bluetooth devices. 2. Supports automatic answering; can be switched to manual answering mode for safe and convenient operation. Built-in high-quality noise-reducing 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 redial functions for easy operation. Specifications: Connection Type: Bluetooth Bluetooth Version: V4.2+EDR Transmission Distance: Up to 10 meters (may vary due to environmental conditions and device compatibility) Bluetooth Pairing Distance: 20-30 meters (depending on the connected device) Standby Time: Up to 120 hours Play Time: Up to 15 hours Charging Time: ≤1 hour Battery: 3.7V/500mAh Lithium-ion Microphone Range: Up to 1 meter Frequency Range: 2402 MHz - 2480 MHz Product Features: Helmet Headset with Bluetooth Motorcycle Helmet Headset Bluetooth Headset for Motorcycle Helmets Headset Compatible with Helmets Package Includes: 1 x Motorcycle Helmet Headset 1 x Charging Cable 1 x User Manual 1 x Microphone Cover 2 x Static Stickers