Product Details Fangrui Product Details Product Features: Ai Voice Intercom, Bluetooth Connection Playback, Bluetooth Hands-free Call, Clock Display, Alarm Clock Setting, Rgb Breathing Light, Tf Card Playback, Fm Radio, Usb Sound Card, Couplet, Spectrum Display, Aux External Audio Input. Audio Output Power:6w() Distortion:+n= Frequency Response:40hz-17khz Bluetooth Version: 5.1+ Product Name:mecha Little Bluetooth Audio Product Model:m10 Bluetooth Transmission Frequency:2.4-2.48g Receiving Distance:5-15m Charging Voltage And Current:dc 5v1 Battery Capacity:1800mah Power Supply Voltage:3.7v/18650 Lithium Battery Horn Size:40 Square External Magnetic Pu Edge 4r-5w Product Size:134.56x120.29x133.56mm Colour:b:white Material:plastic Package Contents: 1 * Bluetooth Speaker 1 * Usb 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.