Wireless portable speaker, Wireless music streaming via Bluetooth, USB Direct and SD card slot for MP3 music playback, FM tuner for radio enjoyment, Audio-in for easy portable music playback, Built-in rechargeable battery for music playback anywhere, Up to 20-hour music playback, Compatibility: iPad: iPad 1, iPad 2, iPad mini, iPad with Retina display, new iPad, iPhone: iPhone 3, iPhone 3GS, iPhone 4, iPhone 4S, iPhone 5, iPhone 5C, iPhone 5S, iPod touch: 3rd generation or later, Android tablets & smartphones: with Android 2.1and Bluetooth 2.1 or above, other music devices: with Bluetooth 2.1 or above, other Bluetooth-enabled device work with: Bluetooth 4.0 or below, Audio supported format: MP3, Playback Media: USB flash drive, SD Card, Tuner bands: FM, Auto digital tuning, Antenna type: Telescopic, Sound system: stereo, Maximum output power (RMS): 3W, Connectivity: Bluetooth profiles: A2DP, AVRCP, Bluetooth range: Line of sight, 10 m, Audio in (3.5mm), Display type: LED display, Power: Battery type: Built-in lithium, Music playtime: 20 hr, Accessories: USB cable: for charging