Wireless Speaker, LCD display Portable Wireless Stereo Audio sound with alarm clock, Hand-free (with MIC)double 5W 66mm Subwoofer and 3w 40mm Tweeter,Bass Resonator,Diaphragm,power amplifier, Built-in Li rechargeable battery 3000mAH, Aux Audio Input Jack,compatible with radio FM/TF card/U disk Handfree Speakerphone. The perfect iphone speaker, ipad speaker, android speaker, smartphone speaker, and tablet speaker Support: Bluetooth, TF card, USB, FM Radio, Line in, Alarm clock; LCD display show Time, Alarm clock, Line in, FM radio, charging Status, Bluetooth status and so on;Support phone redial Bluetooth remote control 20-25M;It can support music formats: MP3, WMA,WAV, PE,FLAC High sensitivity FM radio with internal antenna;With alarm clock function in on state, you can set the alarm music via USB,TF card. Material: ABS Plastic with rubber oil;Built-in Li rechargeable battery 3000mAH;Battery can support play time: 4-8hours;Speaker size: 200*58 MM; Support Hand-free when answer calling (with MIC);Auto Voice Prompt power on/off and Bluetooth is connected and disconnected