BT12 Moto Helmet Headset Bluetooth Headphones Music Share Noise Cancel Hands Free BT V4.2 Earphone Handsfree With Microphone for Motorcycle Motor Bike Features: 1. Utilizes the latest CSR 4.0+EDR Bluetooth technology, providing strong signal transmission, ultra-low power consumption, and compatibility with all Bluetooth devices. 2. Supports automatic answer function and can switch to manual answer mode for safe and convenient operation. Built-in high-quality anti-interference microphone enables effective hands-free calling and call ending. 3. High sound fidelity with controls for song navigation, volume adjustment, play/pause, and automatic redial functions for simple operation. Specification: Connection Name: BT Bluetooth Version: V4.2+CSR (updated, may differ slightly from manual) Transmission Distance: 10M (may vary due to environmental factors and mobile device compatibility) Bluetooth Pairing Distance: 20-30 meters (depending on device) Standby Time: 120 hours Play Time: 15 hours Charging Time: Not specified