Item Type: Karaoke Machine_x000D_ Material: ABS, Metal, Electronic Components_x000D_ Product Size: Approx. 15x9x8cm / 5.9x3.5x3.1in_x000D_ Weight: Approx. 789g / 27.8oz_x000D_ Microphone and Speaker Battery Type: Lithium Battery (Microphone and Speaker Are Shipped with Built in Battery)_x000D_ Single Microphone Battery Capacity: 1200mah_x000D_ Speaker Battery Capacity: 3000mah 1Stereo: Equipped with advanced digital signal processor, sound is clear and moderate volume. While playing music, press and hold the volume button to reduce volume. Small and portable, we can put it in the car, suitcase, bag 2Multi Function: Wireless transmission via the latest built in Bluetooth 5.0 chip ensures instant pairing, providing more stable transmission and longer distance. It also supports memory card, USB connection, and can be used as a battery to charge your phone and microphone. It is suitable for your smart device, for Android phone, TV, tablet and computer 3Multiple Voice Effects: 2 microphones are essential for duets and dances. With 2 microphones, there are 6 kinds of voice effects: original, catacoustic, male voice, female voice, doll voice, magic voice, which can meet more needs and bring more fun 4Long Battery Life: Built in 3000mAh rechargeable lithiumion battery can play music for 5 hours continuously. Microphone built in efficient 1200mAh rechargeable lithiumion battery, strong practicability 5Widely Used: This karaoke machine is perfect for family gatherings, classrooms, speeches and so on 1 x Karaoke Machine 2 x Microphone 1 x Data Line 1 x Instruction Manual