Poweradd Bluetooth 4.0 Receiver Wireless Audio Adapter with Apt-X Technology, Built-in Battery (1300mA), 3 Enhanced Modes and 3.5mm Stereo Output for Headphones/Home / Car Audio System Bluetooth amplifier with volume song controls for headphones home stereo car stereo supports 8 600 ohms impedance devices with 3 changeable audio modes to meet your tastes Dynamic Bass Boost 3D Surround Stereo Standard Bluetooth receiver function easily change Non Bluetooth speakers into Bluetooth enabled devices Play music wirelessly from your phones tablets laptops or PCs Bluetooth 4 point 0 and AptX technology ensure stable signal and high fidelity stereo sound Built in 1300mAh premium Li ion battery provides up to 60 HOURS PLAYTIME With 3 point 5 mm audio input audio cable included for connecting to Non-Bluetooth devices such as MP3 MP4 CD Players or computers Portable and lightweight only 3 point 4 into 2 point 3 into 0 point 48 inches and 0 point 13lb easy to carry on the go NOTE Please charge the battery completely before the first use