Products: outdoor fashion card mini audioType: bluetooth speakersConnection mode: bluetooth connectionSignal to noise ratio: 70 db or higherPower supply: built-in lithium batteryTrack: 2.1Bluetooth protocol: 3.0Range: 10 metersShell material: plasticAppearance size: 75 * 75 * 75Color: white、 black7. Functional features:Bluetooth hands-free callsThe intelligent voice prompt360 degrees five points to speakConical diffuserSupport bluetooth、 AUX USB charging functionFive functions: hands-free calls + card play + FM radio + bluetooth connection + audio input (can be used as a mobile phone or MP3 \ MP4 and other digital products external small speakers use)