Function: card insertion Function: Anti-fallingApplicable scenario: vehicle mountedApplicable scenario: desktop Applicable scene: outdoorApplicable scenario: mobile and portableApplicable scene: K songApplicable scene: outdoor lawnConnection mode: Bluetooth connectionType of interface: USBFrequency response range: 100HZ-20KHZOutput power: 5WSignal-to-noise ratio: ≥75dBPower supply mode: built-in lithium batteryChannel: 2Playback duration: 5HExpansion: 32GBBluetooth protocol: 5.0Number of horns: 2Effective distance: 10 meters Operation mode: press keyApplicable people: general Display: None Material: plasticSupport APP: noSupported format: U diskAdjustment mode of speaker: press keyls there a radio function: yes. Material: plasticitem code: SIPacking list: speaker/color box/charging cable/manual Package type: Bluetooth versionColor: dazzling black with 5W Bluetooth version Color: silver gray with 5W Bluetooth version Color: dark blue with 5W Bluetooth version Color: charm red with 5W Bluetooth versionPower supply: USBBuilt-in battery capacity: 1200mAh Category: portable speaker