Enjoy your music, without being tied to headphones, with the AUVIO Portable Bluetooth Speaker. It easily pairs with any Bluetooth capable device. Rechargeable Bluetooth speaker is compatible with most Bluetooth-enabled devices. Rechargeable lithium-polymer battery for portable use for extended play time up to 5 hours. 3.5mm audio in allows you to use it with non-Bluetooth media players. Frequency response: 150HZ-14KHZ. Output: 2W 10% distortion.