Features:Support TF cardPortable Bluetooth wireless speaker enables you to wirelessly transmit music from your Bluetooth.Small and light enough to drop into your picnic bag， hand luggage， or even your handbag!Perfect for use in the home， garden， on the beach， picnics and just about anywhere .Great Sounding， having 2 internal drivers and an additional bass driver you'll enjoy the large soundRechargeable - No need to worry about batteries， having an integrated high capacity internal batteryThe portable speaker is easily charged and will give up to 5 hours of continuous use.Specifications:Working Range: Up to 10mWorking Time: 5 hoursSpeaker: diameter 45mmLoudspeaker Output: 3WFrequency Response: 280HZ-16KHZS/N: ��95dbDistortion: ��0.5%Battery Capacity: 520mAhBattery Charging Voltage: 5V��0.5VBattery Charging Time: 2 hoursColors: Black， BlueSize: 60*60*50mm(L*W*H)Net weight:189gPackage includes:1x Bluetooth Speaker1x 2 in1 Audio Cable (USB Charging Cable)