There are four buttons on the mouse. Resolution: 1600, 2400, and 800 Frame rate maximum: 4000 fps Length of wire: 180 cm Headphones Size of speaker: Φ40*9 mm Mic -38±3dB is the sensitivity (0dB=1V/Pa,1KHz). Impedance: 32Ω±15% Omnidirectional microphone Length of cable: 2.05±0.01 meters Measurements: 200*185*80 mm Keyboard Arrangement: 104/105 USB interface Length of wire: 180 cm W x H x L measurements: 470 * 188.5 * 34.5 mm Mouse pad measurements: 280 x 200 x 3 mm