Product features: 1. Magic speaker system design, amazing dual-power built-in low-frequency amplification design, mid-low frequency is more powerful, and sound performance is better 2. Adopt advanced Bluetooth audio decoding chip, support mobile phones, tablet computers, TV and other Bluetooth devices to play music in pairs; Bluetooth transmission distance is greater than 10 meters 3. Support hands- calling function, built-in high-sensitivity microphone, so that mobile phone calls have unparalled pleasant call enjoyment 4. Support U disk and TF card to play music, support full rate to play MP3 format 5. FM automatically searches and stores radio stations 6. Built-in FM radio module, can automatically find and store radio stations, saving time and effort; support AUX audio input, providing you with computer speakersProduct Specifications: 1. Wiress Bluetooth: V5. 02. Support: L2CAP/A2DP/AVCTP, can receive audio signals and control audio equipment. Support HSP/HFP (hands- configuration file), with hands- function 3. Working distance: 10m 4. Signal to noise ratio: 90dB 5. Battery capacity: 3.7V 1200mAh 6. Playing time: 3 hours (volume will affect playing time) 7. Speaker size: 45mmx 28. Speaker power: 5Wx 29. Frequency response: 120Hz-20KHz 10. Charging input: 5V/500mAh 11. Charging time: 3-4H 12. Product size: 75x75x162mm 13. Stand-alone weight: 405gPacking list:Bluetooth speaker x 1Charging cable x 1Chinese and English manual x 1