Fangrui Product Details Experience The Ultimate Party Atmosphere With Our High Power Karaoke Bluetooth Speaker. This Speaker Features Vibrant Music Rhythm Lights That Sync To The Beat, Creating An Immersive Audio-visual Experience. Enjoy Rich, Powerful Sound With Stereo Surround Technology And A Robust Wireless Subwoofer That Enhances Bass Response. Designed For Convenience, This Speaker Includes Dual Microphones For Duet Performances And A Built-in Phone Holder, Making It Easy To Read Lyrics And Control Playback. Whether Its A Family Gathering, Outdoor Party, Or A Casual Get-together, This Speaker Is Your Entertainment Companion. Product Features: Bluetooth, Tf Card, Usb, Aux, Karaoke, Voice Changing, Magic Sound, Voiceover, Led Light Speaker Specification: 10.1 Cm/4 Inches Rated Power: 3 10w Rated Voltage: 5v1a Signal To Noise Ratio: 45db Play Duration: 3-4 Hours (varies Depending On Volume And Music) Bluetooth Specification: Bluetooth 5.1 Transmission Distance: 10m Speaker Battery: 2000mah/with Protective Board Designed For Modern Living