Specifications:It is Mini and lightweight, easy to carry and use.You can switch the modes between bluetooth-compatible mode, FM mode, TF card mode, and line mode freely.Built-in bluetooth-compatible function which supports hands-free calling.Directly connect to your mobile phone, laptop or other audio devices, and enjoy the stereo music.Item Name: Music SpeakerMaterial: ABS, MetalBluetooth Version: bluetooth-compatible 4.1Transmission Distance: 10mTF Card: Maximum Support: 32G(TF Card Not Included)Input: DC 5VTHD: SNR: 70dBOutput Power: 3WFrequency Response: 150-20KHzPower Supply: Built-In 350mAh BatteryCharging Port: USBCharging Time: About 2-3 HoursMusic Playback Time: About 10 Hours (Depending on Music Volume)Features: Rechargeable, Mini, Portable, Sound AmplifierSize: 7cm x 7cm x 4.8cm/2.76" x 2.76" x 1.89" (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 Music Speaker1 x Charging Cable