Item Type: Children Mini Karaoke MachineMaterial: Metal, ABSSpeaker Built In Battery: Lithium 2000mAhMicrophone Built In Battery: Lithium 500mAh x 2Bluetooth: 5.3Frequency Response: 60Hz-18KHzBluetooth Transmission Distance: Approx. 10m/32.8ftMaximum Sound Pressure Level: >115DB1Speaker: 57mm 4 6W 50 DiaphragmDistortion Level: 0.5%Memory Card: Maximum Support 64G (Not Included)Package List1 x Speaker2 x Microphone1 x Charging Cable1 x Instruction Manual 1SUPERIOR PERFORMANCE: Mini karaoke machine is equipped with voice frequency driver and advanced digital signal processor to provide crystal clear sound, moderate volume and zero interference. Mini size, ultra lightweight, compact and featuring a portable carrying handle, it's easy to take with you wherever you go. 2ADJUSTABLE FUNCTION, BLUETOOTH 5.3: The upgraded microphone system allows users to adjust the reverb effect and music volume separately, giving them complete control over their voice. With Bluetooth 5.3 technology, the child microphone pairs instantly and maintains a connection of up to 10m. This karaoke machine supports micro memory card connection and is compatible with for Android phones, for IOS Tablets, tablets and PCs. 3LONG LASTING PLAYTIME: The kids karaoke machine has a built in rechargeable battery that provides up to 510 hours of uninterrupted fun. Whether it's a birthday party, classroom activity or outdoor adventure, this portable Bluetooth speaker and wireless microphone will keep the excellent times rolling. 4DIFFERENT SOUND EFFECTS AND LIGHTS: With different sound options, your song sounds great every time. With the LED lights changing randomly, the girls kids karaoke machine creates an uplifting and lively ambient, perfect for all types of parties. 5IDEAL GIFT: The toddler karaoke machine is the perfect birthday or Christmas present for kids of all ages. With its great sound quality, stylish design and easy to use features, it is sure to be a hit with any favorite.