KTV Set K Song Audio Wireless Bluetooth Dual Microphone Speaker Microphone All-in-one Machine Specification: Color: White material: plastic Product size: 15.5x13.5x15.5cm/6.12x5.33x6.12in Net weight: 1.2kg/2.64lbs Gross weight: 1.31kg/2.89lbs Supports various smart phones with Apple and Android systems. Link method: Bluetooth Speaker power: 10W Signal to noise ratio: ≥115dB Frequency response range: 20～20KHZ Audio interface: 3.5mm stereo headphone plug Built-in 3000MA lithium battery Charging time: 3～5 hours Play time: 5-8 hours with full charge and intermediate volume Power adapter requirements: output voltage: 5V current 1A/2A Features: Endless fun: 5 kinds of voice change modes, press the EFF button to switch the sound effects, make K song more interesting Support 7db loudness adjustment of reverb and treble/bass, 32-level microphone and instrument music adjustment 100W high power, the sound is comparable to a small concert, even in a noisy outdoor environment, you can also have high-quality sound Large-capacity lithium battery, long battery life, built-in 7.4v/3000mAh lithium battery, support DC5V-2A TYPE-C new generation charging cable You can enjoy singing at home Package Contents: 2x USB charging cable 1x manual 1x audio