Dynamic flow line lead the fashion Wireless technology High-performance wireless transmission zero delay, make your operations more smoothly. Fashion simple conceptual design, generous, comfortable, elegant, ultra-high frequency 2.4GHZ wireless transmission technology to receive long distance, free adjustment of the distance of 10 meters. Optical Technology The use of leading optical sensor technology, so you can use it on the desktop with ease in addition to the glass. Strong locus of control Ergonomic design, from the appearance to the material, with the palm of the hand fingers more fit, to bring superior comfort; that easy to control. Tilt Wheel Technology Feel unparalleled accuracy, speed control; new wheel functionality and intuitive software enables enhanced wheel in the documents and web pages to scroll faster. Packing: White box Inner Size:13*8.5*4cm Ctn. Size: 42.5*46*29cm Net Weight: 70g Gross Weight: 95g Q'ty per 20' FCL:42,000 pcs Q'ty per 40' FCL:84,000 pcs Q'ty per HQ FCL:90,000 pcs.