Bluetooth version: V5.0Battery capacity: 1200mAhSpeaker power:5W*2Card type: TF card, U diskConnection method: Bluetooth connectionFrequency response range: 100HZ-20KHZSignal-to-noise ratio: 75dBEffective distance: 10 metersCabinet material: ABSAppearance size: 18*8*8CMPower mode: USBProduct net weight: 0.4Rated voltage: 3.7Shell material: ABSAdditional functions: plug-in cardAdditional features: Voice promptsAdditional features: call functionAdditional functions: Collect money for broadcastingWhether there is a built-in battery: Built-in battery