1. Singing, Karaoke, listening, practice song, full bass not depressing, high pitch clear not sharpen, restore real stereo sound effect.2. Sound into environment, one key to eliminate original sound to give you new singing experience, give you KTV experience, voice amazing.3. Bluetooth connection can quickly connect all the mobile phones in the market, tablets PC, laptops and other Bluetooth devices to enjoy wireless free.4. One machine multi-purpose, Karaoke song, listening to music, watching movies, brings you auditory feast.Spec:Condition: Brand NewItem Type: SpeakerMaterial: ABS + MetalOptional Color: Black, GoldBluetooth Program: Bluetooth4.2Bluetooth Distance: 10 MetersLoudspeaker Power: 2*15WLoudspeaker: 4 Inch Outside MagneticBattery: Built-in 3000Mah 7.4VMicrophone Battery: Built-in 1500mahPlayback Time: 2H-3HCharging Mode: Charger 5V-2ACharging Time: 3H-4HMain Function: Bluetooth, Storage Card, AUX, USB Flash Disk, Bring Karaoke Mode, Display ScreenWeight: Approx. 2857gHow to Use:1. The product needs to be charged after use. It can be used for 2‑3 hours in a fully charged state, and the charging time is 3‑4 hours.2. Bluetooth will generally reconnect with the previous device, and the device can only be connected to other devices after it is turned off.packing list:1 xSpeaker2 x Microphone1 x Data Cable1 x 3.5mm Cable1 x ManualNote:Please note that the old and new type of the product will be sent randomly, and make sure you will not mind before ordering.