Technical Pro BLUET7 Powered Speaker Cabinet, White The BLUET7's Bluetooth compatibility allows for wireless connection to any A2DP stereo Bluetooth device. That means you can play audio files from your phone, laptop or any other Bluetooth enabled device within a 30 foot range Inputs: USB Flash Drive, 1/8'' (MP3). Digital FM tuner. USB flash drive maximum size: 16GB. Plays .mp3, .wma files from USB flash drive. Track number, Folder number & elapsed time will display for USB input. Bluetooth compatibility allows for wireless connection to any A2DP stereo Bluetooth device. Features Bluetooth v2.0 with EDR. Bluetooth (2.4 GHz) technology. Bluetooth Range: 30 Feet Digital output display meter. Repeat / Random playback on USB flash drive input. Remote Control. Frequency Response: 20Hz-20KHz.