Features: brand new and high quality The simple for key design of "single step nail" is simple to use and easy to carry. Standard TYPE-C charging socket, built-in rechargeable lithium battery. 4 modes, support up and down & left and right page turning, support simulated finger turning page. It can last up to 40 hours when it is fully charged, and it can automatically shut down and save power if it is not used for 30 minutes. The power saving function can also be turned off. It can be easily used in applications such as electronic music scores, e-books, PPT, photo albums, short videos, etc. It is almost for most applications. Specifications: Material: ABS+Electronic Components Color: Black Package Weight: approx.80g Size: approx.7.3x7.3x3.4сm/2.87x2.87x1.34in Package Includes: 1Pc x Music Score Page Turning note: Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!