Welcome to our store! 1. Specially ergonomically designed vertical colorful mouse has the function of being simple and comfortable to use 2. Adopt high-quality durable ABS material with high strength, scratch resistance, environmental protection 3. This mouse equipped with a receiver, can be connected wirelessly, very practical and useful 4. Support a powerful and reliable connection, you can enjoy the fast data transmission with this mouse 5. Upright and ergonomically superior design reduces harmful arm and wrist tension, letting your hand work while remaining in a natural position Item Type: Vertical Mouse Material: ABS Color: Black Battery Model: 2 x AAA (not included) 1 x Vertical Mouse 1 x Receiver Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.