Specification1.Support A2DP,AVRCP, Hands profile,FM radio2.With FM function, can search radio station broadcast automatically3.International advanced Wiress chip and circuit design techniques,support all wiress devices.4.With Hi-Fi speaker, to make sure the clear and bright sound. 5. Support Micro SD card and USB card, play MP3 format audio.6.The wiress working distanceis 10 meters.7.With AUX line in, can directly connect the outside devices, tablet PC/TV/clphones.8.It will close automatically after 30 mins if bluetooth mode no connection Feature:Wiress transmission range: 10MAudio noise ratio: About 90dbBattery capacity: 1200mAhBuilt-in voltage: 3.7VNormal volume playback: 2H~4HSpeaker Specifications: 52MM*2Speaker power: 4/5W*2Frequency response: 120HZ-20KHZProduct size: 75x75x172.8mmWeight: 458g (bare metal) +105g (accessories)Charging voltage: 5V/500MAMEAS: 40.5*38.5*42.3CMQTY: 50PCS/CTHNW/GW: 26.5KG/27.5KGSupport TF card, u disk, AuX, FM radio, bracket functionPackage List1* Bluetooth Speaker 1* USB Charging Cable 1* AUX Cable 1* User Manual