Sounder 10W Dual-Driver Rechargeable Portable Wireless Bluetooth Speaker with Bass, Radio and Built-in Microphone - Matte Black Superior Hifi Sound Quality:THD&lt;0.3% Low Harmonic Distortion and Superior Sound, Designed to deliver great sound and eliminate distortion even at max volume, robust bass through 10W (5W * 2) speakers Compatiblity: Compatible with Windows iOS and Android and Aux Input jack for iPhone, iPad, Samsung Galaxy ,Macbook, Laptops, Desktops Bluetooth v4.0 Apt-x New Technology: Supports wireless music streaming via Bluetooth v4.0 Instantly connect to your smartphone or tablet from up to 66 feet away Built-in Li-Ion battery: 2300mAH rechargeable high capacity battery for up to 10 hours of playtime and built in microphone Built-in mic for hands-free calls ULTRA PORTABLE: For Only 300G Easy To Carry, Portable size, stylish design and simple appearance, super light, suitable for travel, beach ,party, Home, Office, Patio, Club , and other outdoor activities