Features 1.HD Stereo: Bluetooth speaker microphone set with sound driver and advanced digital signal processor for clear sound, moderate volume and no noise. Press and hold the volume button when playing music, easy to adjust the volume. 2.Sound Change: Bluetooth karaoke machine has 6 kinds of sound effects, standard, KTV, female voice, male voice, baby voice, a variety of sound change, one button to switch, bring more fun. Perfect for family outdoor party, classroom, speech, etc. 3.Multifunctional: Karaoke speaker with built in Bluetooth 5.0 chip for wireless transmission and fast pairing, providing more stable transmission and longer distance. It also supports small memory cards, USB connection, and can also charge cell phones and microphones. 4.Small And Portable: Wireless karaoke speaker and mic for your smart devices, TV, tablet and PC, mini size, dose not take up space, easy to carry, whether at home or traveling, you can put it in your car, suitcase or bag. 5.Long Battery Life: This karaoke speaker has built in high capacity 2000mAh rechargeable battery for 5 hours of continuous music playback and a microphone with a high efficiency 1200mAh rechargeable battery. specificationItem Type: BT Speaker Microphone Set_x000D_ Material: ABS_x000D_ Speaker Parameters:_x000D_ BT Version: 5.0 Version_x000D_ Memory Card: Maximum Support 32GB (Not Included)_x000D_ Speaker Diameter: Approx. 57mm/2.2in_x000D_ Speaker Power: 6W_x000D_ Frequency Range: 20HZ-20KHZ_x000D_ Reverb: Aftersound Effect Reverb_x000D_ Built in Battery: Lithium Battery 2000mAH_x000D_ Charging Time: About 2.5 Hours_x000D_ Microphone Parameters:_x000D_ Pickup: Back Pole Condenser Microphone_x000D_ Built in Battery: Lithium Battery 1200mah_x000D_ Frequency Range: 20HZ-20KHZ_x000D_ Charging Time: 3.5 to 4 Hours PackageList1 x_x000D_ _x000D_ BT Speaker 1 x Microphone 1 x Charging Cable 1 x Instruction Manual