Feature: 1. HD Sound Quality: The product is equipped with a speaker driver and advanced digital signal processor, with clear sound, moderate volume, and no noise; Press and hold the volume button while playing music to easily adjust the volume you want. 2. Convenient to Carry: The speaker is small in size and can be placed in the car or bag. You can take it with you whether you are resting at home or traveling; It is suitable for singing at indoor and outdoor parties, family gatherings, etc. 3. Product Function: This machine ensures pairing by incorporating the latest BT 5.0 chip, providing more stable transmission and longer distances; It also supports small memory cards, USB connections, and can even be used as a rechargeable battery to charge mobile phones and microphones; It is suitable for your smart devices, televisions, tablets, computers, and more. 4. Multiple Functions: This product comes with 2 microphones, and has 5 magic voice effects: original, baby, female, male, and magic voice, which can meet more needs of users and bring more fun to life. 5. Long Battery Life: This speaker has a built in 3000mAh rechargeable lithium ion battery that can continuously play music for 5 hours; The microphone has a built in high efficiency 1200mAh rechargeable lithium ion battery, which allows users to worry about running out of power on their devices, whether it's an indoor dance or an outdoor party. Specification: Item Type: Singing machine Weight: 1277.00g/45.04oz Speaker Size: Approx. 15x15x13cm / 5.9x5.9x5.1in Material: ABS, metal, electronic components Battery Type of Microphone and Speaker: Lithium battery (both microphones and speaker are shipped with built in batteries) Battery capacity of Single Microphone: 1200mah Speaker Battery Capacity: 3000mah. Package List: 1 x Speaker2 x Microphones1 x Data Cable1 x Signal Line1 x Instruction Note: Microphones and speaker are shipped with built in batteries.