Features 1.Lightweight body, release large energy, all kinds of compatibility. 2.Do whatever one wants, imported chip, 360 dimensional sound. 3.Support for storage card playback, high sensitivity to receive and adjust voice frequency. 4.Dynamic sound effect, sports and portable, powerful function and plug-in card, convenient and fast to use. 5.Made of high quality zinc alloy material, sturdy, durable and long service life. specificationCondition: 100% Brand New Item Type: Bluetooth Speaker Model: U1 Bluetooth Version: 4.2 Material: Zinc Alloy Optional Color: Black, Gray Power: 5W*1 Frequency Response: 45HZ-18KHZ Charging Voltage: DC5V/1000MA Battery Voltage: 3.24.2V SNR: 65dB Distortion: 0.5% Built-in Lithium Battery: 400mAh Compatible: Storage Card/USB Flash Disk, Reception, AUX, Bluetooth Weight: Approx. 314g Loudspeaker Size: Approx. 2 Inch 45 Magnetism*2 Cord Length: Approx. 0.5m/1.64ft PackageList1 x Manual1 x Charging Cable1 x Bluetooth Speaker