Intelligent Bluetooth Earphone IBE-06 is not just a earphone , but also a car security system which can awake the tired driver to adjust his posture for safe driving! No wires, no mess behind the wheel Compact, versatile, comfortable and powerful Listen to music at your own comfort Features: Bluetooth 1.2compliant Class 2 Tx power Frequency: 2.4GHz Channels: 79 The longest standby time: 120 hours The longest talk time: Five hours Rechargeable battery Li-polymer Working range: indoor 5 meter, outdoor 10 meter Description: Headset and handsfree profiles Voice dialing function to support your mobile phone Basic call handling the headset with adjustable volume control Keep user away electromagnetic wave of mobile phone Allow you to be handsfree and cord-free all day long Can be worn comfortably on either ear Light and balanced weight design offers wearing comfort From our website: OR you can see many models of Car GPS monitor, Amplifier, Chair dsplay monitors, Security Bluetooth earphone, and other auto electronics.