Large-diaphragm moving coil unit brings more shocking sound effects, and the sound quality is clear and thorough. 360 degrees surround sound, the flexible metal diaphragm can carry deep bass. The buttons are easy and quick to operate, and the simple and clear buttons are displayed clear, so there is no need to worry about bluetooth-compatible connection problems. Comes with TF card slot and U disk socket, which can support expansion, and you can listen to songs without Bluetooth, which is suitable for more scenarios. The portable handle is easy to carry without being restricted by the environment of use. The compact size allows you to put it in your pocket at any time, without any pressure to carry. Made of high quality plastic material, it is reliable, environmentally friendly and durable. The length of this speaker is 10.7cm, width is 9.3cm, height is 4.8cm. It is suitable for home, office, school, desktop, outdoor, etc. Item Name: Wireless bluetooth-compatible Speaker Material:Plastic Output Power: 3W Interface Type: USB Battery Capacity: 400mAh(Included) Playback Time: 3-4 hours Bluetooth Version: bluetooth-compatible 5.0 Signal to Noise Ratio: 75dB Model: T29 Extended Storage: 16GB Frequency Response Range: 40Hz-15KHz Operation Mode: Button Size:10.7cmx9.3cmx4.8cm/4.21inx3.66inx1.89in Notes: 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. Package Includes: 1 X USB Charging Cable 1 X Speaker