Enermax Briskie. Device interface: RF Wireless, Keyboard style: Straight. Movement resolution: 1600 DPI, Movement detection technology: Optical. Frequency band: 2.4 GHz. Keyboard dimensions (WxDxH): 133 x 452.5 x 16.5 mm, Keyboard weight: 417.6 g, Mouse dimensions (WxDxH): 59 x 110 x 35 mm. Mouse battery type: AAA, Keyboard battery type: AAA