NAXA Electronics NAB Bluetooth Wireless Receiver and Adapter (Black) Stream music from any Bluetooth transmitting device to any music system with 3.5mm jack Works with any Bluetooth device including iPhone, iPod, iPad, Android, Windows Phone, Mobile Phones, Tablets & Laptops Range: Up to approximately 30 feet Bluetooth V.30 EDR with A2DP Built-in rechargeable Lithium-ion battery (~6 hours battery life) with micro USB jack for charging; Automatic detection of 5V power supply