Fangrui Product Details Product Name: Bluetooth Speaker Product Size: 138x55x123mm Bluetooth Version: 5.3(edr) Implementation Standard: Gb4943.1-2022 Input Parameter: 5v-1a(max) Product Power: 45w Product Weight: 353g Battery Capacity: 2000mah Function Name: Operation Mode And Status On/off: Press And Hold The On Key Audio Source: Bluetooth /tf Card /aux Audio Source Switching: Click The Mode Key To Switch Previous: Click The Minus Key Next: Click The Plus Key To Increase Volume: Press And Hold The Plus Key Reduce Volume: Long Press The Minus Key White Noise: Click The Mode Key To Switch To White Noise Mode, And Click The Plus Or Minus Key To Switch To White Noise Music Background: Long Press The Mode Key To Switch The Background Pattern. By Default, The Background Of The Last Switch Is Remembered. Colour: B White / A Black Material:abs Package Contents: 1 x Bluetooth Speaker 1 x Data Cable Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Crafted With Attention To Detail Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.