Display Screen: No Remote Control: No Cabinet Material: Metal Package: Yes Interface Type: Card Reader Use: Home Theatre,Portable Audio Player,Mobile Phone,Karaoke Player,Computer,Stage Speaker Type: Subwoofer Audio Classification: Mini Playback Function: MP3 Type: Passive Material: Aluminum Special Feature: Wireless,Portable,Mini Radio: No Speaker Structure: Catheter Loudspeaker Accommodation Mode: Button Channels: 1 Display Type: None Model Number: S10 Support the TF card Aux function Handsfree function Perfect stereo sound Bluetooth Wilreless Speakers Description Bluetooth Version Bluetooth V2.1+EDR BluotoothSpeaker Distortion ≤0.1% Speakers Weight: 230g(speaker only) Speaker driver: stereo, 45MM, 4Ohm Speaker output: RMS 3W THD=10% Color Red, Black, White Ect Frequency Response: 280Hz-16KHz Signal And Noise Ration of Power amplifier: ≥96db Battery life: 3-5hours for playing music Battery Charging voltage: 5V Working voltage: 3.3 -- 5V Battery charging time: 2-4 hours Battery capacity: 550 mAh FM Frequency Range NO FM Interface: Bluetooth wirelless, Micro USB charging port, Function Bluetooth, hand free call,, TFcard Bluetooth transmission distance: 10 meters Bluetooth compliant: V2.1 Brand No Brand SKU 100267216_NP-1020526264 Model S10