备注： * Invisibly connect with any audio system like TV, DVD, computer * Ultralight design for comfortable wearing * Operation distance: up to 12 meters * Auto mute function for headphone * Active noise reduction system for crystal clear sound * Built-in microphone on the transmitter * Free internet talking with built-in microphone * Power supply of transmitter: DC12V 150mA * Power supply of headphone: Requires 2xAAA (1.5V) batteries
