Product Weight: approximately 91g Product Name: Lenovo One-Key Service Mouse 2.4G Wireless/Lenovo One-Key Service Mouse Bluetooth Model number of the item: M25 ABS is the primary material. Wireless connection: Bluetooth/2.4G link (this product link comes with two options) < 10m is the working distance. The product's dimensions are 117.19*58.72*41.01 mm. Working more