1. Adopt advanced Bluetooth audio decoding chip to support all Bluetooth device connections; 2. support FM radio, you can directly search the radio station in the listening area; 3. the tone is soft, clear and dynamic, with distinct levels; 4. Direct reading of TF card and U disk; 5. Bluetooth receiving distance can be as long as 10 meters .support LINE IN audio input, provide you with computer speaker function. Can be directly connected to the phone / tablet / and TV Bluetooth pairing to luetooth version: V5.0 Battery capacity: 2200mAh (built in) Endurance time: 8-10 hours Charging time: 1--2 hours Speaker: 20W * 2 Input sensitivity: 400mV Wireless transmission distance: 10 meters The degree of separation: 90dB Frequency response: 100~20KHz ( -3dB) Signal-to-noise ratio: 80dB maximum support: 32G Mode of operation: key Interface type: Micro-USB / AUX / TF card socket / USB Colour:Red Material:plastic Size:About 9x10x26CM Package Contents: 1* Wireless Bluetooth Speakers 1* USB Cable Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.