The Signature K865 full-size version of the mechanical keyboard provides a fast, self-contained mechanical typing experience with wireless freedom. Connect up to three devices via Bluetooth or Logi Bolt USB receiver and switch typing between devices using Easy-Switch. Specifications and details Specifications Height: 138.8 mm Width: 435 mm Depth: 38.8 mm Weight (with batteries): 739.5 g The G304 LIGHTSPEED Wireless Gaming Mouse is designed with the latest technological innovations for outstanding performance. With 250 hours of battery life, it will last longer than you ever thought possible. Available in a variety of colorful options. Specification Physical Specifications Height: 116.6 mm Width: 62.15 mm Depth: 38.2 mm Weight: 99 grams Responsiveness Wireless Reporting Rate: 1000Hz (1ms) Wireless Technology: LIGHTSPEED Wireless Microprocessor: 32-bit ARM