Mini Bluetooth Speaker Portable Wireless Speaker Sound System 3D Stereo Music Surround TF USB Super Bass Column Acoustic System(blue)

Playback Function:MP3 RadioFrequency Range:150Hz-20KHzNumber of Loudspeaker Enclosure:1Battery:YesPower Source:Battery DCMaterial:ABSSupport Memory Card:YesRemote Control:YesBuilt-in Microphone:YesCommunication:USB bluetoothSpeaker Type:Computer SpeakerChannels:2 (2.0)sytle:miniPackage Weight:0.2kgPackage Size:16cm x 6cm x 6cmFeatures:Built-in Bluetooth wireless transmission call hands-free function.Simply connect your smartphone tablet and other devices to the speaker via Bluetooth.Thanks to the integrated USB port and TFcard slot you can listen to your music anytime and anywhere from your USB stick or TF card.Supports all external 3.5mm terminals audio input.Support FM auto search station.Fit your home office ect.Compact size lets you easily move it about from room to room.Description:Signal to noise ratio: ? 84dBSensitivity: 80db+2dbOutput power: 3WMagnetic speaker: 4? 3W 40MMInput voltage: DC 5VWorking voltage: 3 to 5.5VBattery Capacity: 600 mAhCharging time: 3hours