Fangrui Product Details Applicable Scenarios: Car, Desktop, Fitness, Outdoor, Home, Mobile, Square Dance, Broadcasting System, Outdoor Lawn Connection Method: Bluetooth Connection Play: Wireless Connection/tf Card/aux Input/usb Disk Frequency Response : 100hz-20khz Signal To Noise Ratio: 75db Number Of Speakers: 2 Effective Distance: 10 Meters Power Mode: Usb Waterproof Grade: Ipx1 Bluetooth Version: 5.0 Rated Power: 200 Rated Voltage: 5 Built In Battery: Built In Battery Supported Formats: Tf Card+usb Drive Output Power: 2*57w Input Power: 200w Working Range: 10 Meters Material: Plastic+metal Colour: Black Package Contents: 1 X Bluetooth Speaker 1 X Charging Cable Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.