UNIVERSAL iBomb SILVER PORTABLE BLUETOOTH WIRELESS SPEAKER. Indoor/Outdoor Bluetooth Speaker. Full-range speaker drivers deliver powerful 360-degree soundConnects wirelessly to Bluetooth devices up to 33' awayRechargeable battery lasts more than 7-8 hours per chargeFeatures easy-grip carry handle, take it anywhere: poolside, decks or even the beach...Amp up your party wherever you go! Technical Specifications:1.Built in Bluetooth 2.Built in lithium battery capacity:2000mahPlayback Time:Over 7-8 hoursHandsfree:Built in microphoneUSB slotMicro SD card slot FM radioAUX PORTSpeaker system power:5W*2S/N:≥87DBFrequency Response:60Hz-18KHzHarmonic Distortion:≤2%Work valtage:3.3V-4.2VCharger Voltage:3.3V-4.2VCharger voltage:DC5V,1AProduct size:240*70*136mm