Feature： 1，With LED lights, Bluetooth v2.1, support stereo music。 2，Volume control, volume down/up, next/previous song. 3，Built-in rechargeable battery, come with a charging cable. 4，Compatible with most Bluetooth enabled cell phone/Tablet/PC/Laptop. 5， Support systems: Windows/IOS/Android. 6，Built-in microphone for hands-free phone call. 7，FM radio function, listening to regional radio. 8，with HI-FI speaker,to sure the clear and bright sound quality. Specifications： 1， Bluetooth: 4. 2，Ransmission distance:10m(Open and barrier free) 3，With FM function,can search radio station. 4，Speaker Specification:40mm/4Ω. 5，Normal volume playback: 2H~3H. 6，Power: DC 5V. 7，Speaker power：3W. 8，Frequency response：120Hz-18kHz. 9，SNR:≥75dB. 10，Product size:78*77mm 11，With 3.5mm audio input jack,Mp3 TF card insert play. 12， Compatible For iphone, For ipad, For Samsung,For Huawei, For Xiaomi and any devices with Bluetooth functions. Package Content 2 X Bluetooth Speaker 2 X Micro USB Charging Cable. 2 X Instructions in Chinese and English. 2 X Audio Line.