RYRA Ergonomic Vertical Mouse 2.4G Wirele Gaming Mouse 1600 DPI USB Optical Wrist Healthy Right Left Hand Mause for Computer Description: 100% new quality. Made of qualified materials, high quality, safe and harmle. High quality, low price and high cost performance. Easy to use, practical and durable. It is the first choice for working, learning, and gaming mice. Product: ergonomic vertical wirele mouse Style: charging, battery Color: As shown Size: 12.3cm*6.2cm*7.5cm Specifications: With the advancement of the times and the development of science and technology, people's work and daily life are increasingly inseparable from computers. It takes a lot of time to operate the computer every day, so the computer-related diseases follow. One of them is carpal tunnel syndrome, which is also called "mouse hand" because of the long-term use of the mouse, resulting in exceive wrist preure, numbne of the fingers caused by nerve compreion, pain, and even neck pain and migraine. Seriously even need amputation. This vertical wirele mouse is a good way to prevent carpal tunnel syndrome. It is ergonomically designed to reduce the preure on the wrist and allows the user to not feel tired after a long mouse operation. At the same time, it looks like a shark fin, looks very cool, very suitable for young people who are looking for fashion. In addition, it comes in two styles, one is a charging model, it can be charged with the USB cable, and the other is a battery model, which can be powered by two AAA batteries. If you need to use your computer for a long time because of work, study, games, etc., then buy this vertical wirele mouse to protect your wrist! Package Included: 1* vertical wirele mouse 1*USB receiver 1*USB charging cable (charging model)