Universal Bluetooth Wireless Transmitter Universal transmitter connects to any device that has a 3.5mm headphone jack commonly found on portable MP3, CD, DVD & gaming systems. Transmits a stereo audio signal to most Bluetooth enabled products like the WBT212 or a Bluetooth wireless receiver like the WBT310 or WBT210. Small & lightweight with digital quality stereo sound Up to 30 range Lithium-Ion rechargeable battery for up to 6 hours of continuous play time