[Powerful]4 usage modes, support up, down, left and right page turning, support imitating finger page turning, compatible with all APPs. [Widely Used]It is easy to read electronic scores, e-books, , , and all kinds of APPs. It is compatible with 99% of APPs, and does not specify the use of APPs. Bluetooth-compatible 5.1 high-speed connection, no need to use wire connect. [Durable Battery Life]International standard TYPE-C charging socket, built-in rechargeable lithium battery, can last up to 40 hours when fully , support automatic shutdown to save power after 30 minutes of use, and can also turn off the power saving function. [Powerful]4 usage modes, support up, down, left and right page turning, support imitating finger page turning, compatible with all APPs. [Easy to Use]Simple key design with single pedal, easy to use and easy to carry. Colour:Black Material:plastic Package Contents: 1 * Wireless Page Turner 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.