Experience the ultimate convenience with the B90 Wristwatch, designed specifically for active individuals. This innovative device combines a loud Bluetooth speaker, all integrated into a comfortable wristwatch. Perfect for running, sports, and other outdoor activities, it allows you to enjoy your favorite music without the need for additional devices. Supports TF memory cards for extensive music storage. Portable and design ensures it doesn't interfere with your activities. Easy-to-use controls simple to switch between tracks and adjust volume. Product channel: mono Bluetooth version: BLUETOOTH 5.1+ Wireless distance: 10M MAX Play time: 6HR Rated power: 3W =10% Frequency response: 120HZ-20KHZ Battery capacity: 400MAH Storage type: TF CARD Due to different batches, there may be differences in product appearance and printed text, which not affect use Colour:Black Material:ABS Package Contents: 1 x B90 Wristwatch 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.