Specifications:It& 39;s a great gift for holiday, believe it and don& 39;t miss.Multi-function and mini size, high quality ABS and electronic component.You may play music by bluetooth device TF card, or connect to your device with 3.5mm to micro usb cable.With this device, you no longer have to have headphone wires in the way of listening to music from your portable devices at home or outdoor. Simply turn on your bluetooth-compatible and pair the devices, and in no time at all you have a portable speaker that sounds great.Also, if your device does not have Bluetooth, dont worry Included on this device is a 3.5mm jack that allows you to plug in any device and have it play through the speaker. Even more, you can play music by TF card ONLY, and you can switch these three play mode anytime.Features:Super bass speaker.With built-in lithium battery.With USB and micro SD/TF card slot, you can play mp3/mp4 format files in the TF card.Support A2DP, AVRCP, headset, handsfree profile.Wireless portable mini bluetooth-compatible stereo speaker system.Saves you from the hassle of tangled wires.Built in rechargeable battery, charged by computer via USB interfacThis model of speaker supports any mobile device comes with bluetooth-compatible function such as for iPhone, iPad, Samsung Galaxy/Note/Tablet, Laptop, Tablet PC, etc.Compact and portable, convenient to carry and use it indoor or outdoor.Type: Wireless bluetooth-compatible SpeakerMaterial: ABS, Electronic ComponentMicrophone: YesBluetooth Version: V3.0+EDRCompatibility: bluetooth-compatible V2.0/V1.1/V1.0Operating Range: 10 metersLoudspeaker Output: 3WSignal to Noise Ratio(SNR): 84dbSensitivity: 80dB2dBMusic Format: MP3Power Supply: Built-in Battery(Included)Input: DC 5V 500mAWorking Voltage: 3.0-5.5VPlaying Time: 3hCharging Time: 2hFrequency Response: 150Hz - 12KHzI/O: bluetooth-compatible + Plus Card + U DiskSize: 145mm x 45mm x 45mm/5.71" x 1.77" x 1.77" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes: 1 x Wireless bluetooth-compatible Speaker (with Lithium Built-in Battery)1 x Micro USB Charging Cable