Display Screen:NoRemote Control:NoCabinet Material:MetalBrand Name:otherPackage:YesInterface Type:USBUse:Portable Audio Player，Mobile Phone，ComputerSpeaker Type:SurroundAudio Classification:MiniPlayback Function:MP3Type:PassiveMaterial:AluminumSpecial Feature:Wireless，Portable，MiniRadio:YesSpeaker Structure:SealedLoudspeaker Accommodation Mode:ButtonDisplay Type:NoneModel Number:S815Product name :Portable Bluetooth SpeakerType:Audio PlayerSpecial Feature :Wireless Portable MiniRated Power:5W *5WSuitable for use :Outdoor Bike HomeSpeaker size:180*66*50mmFrequency:80-15KHzS/N Ratio:80dBBluetooth:3.0+EDRFeatures:The best sound quality:3D surround soundNew bluetooth 2.1 version ，distance of up to 15-20mPortable Multifunction speakerSpeakerphone fuction，built in microphone，to bring clear calls for you ，it is very perfecteither with single or multiplayer for phone call Technical Parameters: Charging time :3-4 hours Play time:5-8 hours Response sensltivity:500mvRated Power : 5W *5WSpeaker size: 180*66*50mmVotage: DC 5VF/R: 80-15KHzS/N Ratio: 80dBweight: 385gBluetooth distance: 10MBluetooth: 3.0+EDRTF card， AUX input Charging indicator:The red light lights when charging.When the red light turns green，charging is finished .Attention :The usb fuction only for the products with usb interface .