Feature 1CLEAR SOUND: Equipped with an sound driver and digital signal processor, the sound is clear and the volume is moderate. Press and hold the volume button while playing music to easily adjust the volume you want. 2BLUETOOTH 5.0 CHIP: Karaoke machine transmits wirelessly via the built in bluetooth 5.0 chip, ensuring instant pairing and providing more stable transmission and longer range. 3MULTIFUNCTION: Supports memory card, USB connection, and can also charge your cell phone and microphone. Suitable for your smart devices, for android phones, TVs, tablets and computers. 46 SOUND EFFECTS: Portable microphone speaker set has 6 kinds of magical sound effects, standard, KTV, goddess, goddess, baby voice, magic voice, a key to switch, to meet more needs, bring more fun. 5LONG BATTERY LIFE: Portable bluetooth speaker built in 1200mAh rechargeable lithium ion battery, can play music continuously for 6 hours, microphone built in high efficiency 400mAh rechargeable lithium ion battery. 6APPLICABLE SCENARIO: Portable karaoke speaker system is small and portable, suitable for indoor and outdoor parties, family gatherings, singing, classrooms, lectures.Item Type: Portable Karaoke Speaker SystemMaterial: ABS, Metal, Electronic Components, LeatherBattery Type Of Microphone And Sound: Lithium Battery (Microphone And Sound Are Shipped With Built In Battery)Microphone Battery Capacity: 400mahSound Battery Capacity: 1200mahMemory Card: 2-256GB (Not Included)Size: Approx. 13 x 9 x 7cm / 5.1 x 3.5 x 2.8in .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Speaker1 x Microphone1 x Charging Cable1 x Instruction ManualNotePlease allow some error due to manual measurement.