Features: Powered by a built-in rechargeable lithium battery, it can last up to 48 hours when fully . Equipped with foot control and wireless BT connection. It is suitable for tablet, mobile phone or computer, and can be used to operate picture flipping, spectrum flipping, multimedia software control, replacing some function keys on the keyboard, etc. There are a total of 7 operating modes, each with 7 indicator lights corresponding to it. Support multiple intelligent spectrum flipping software: photos/forScore/OnSong/ PDF/NextPak/Image Library/GoodNotes/Mobile Sheets/SongBook/UnrealBook/Paperless Music/plaScore, etc. Support continuous sending function. It can realize one-foot operate the equipment, make your operation more smooth. Adopts foot-control design and wireless BT connection, the control pedal is simple and convenient. Specifications: Power Supply: 5V10% power transformer charging Working Voltage: Less than 6V Output Interface: 2 instantaneous step pin switches This product has 7 modes to choose from, please select a mode according to your requirementsThe 7 modes correspond one-to-one to the seven lights on the left side of the front panel. Pleaserefer to the following introduction. 1. can replace the Left and Right keys of the computer keyboard, or for other devices to turn the page 2. can replace the Up and Down keys of the computer keyboard, or for other devices to turn the page. 3. can replace the Page Up and Page Down keys of the computer keyboard, or use for other devices. 4.It can function as the Space key and Enter key. 5.It can be used in multimedia software to switch betweenthe Previous song and song. 6.It can use to swipe left and right on your Android phone 7.It can use to swipe up and down on your Android phone. size: 110 x55.57 x 28mm Material: ABS colour: black Package Contents: 1 x Square turner pro 1 x 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.