Color: Black - Material: ABS + Stainless steel - Reliable 2.4GHz wireless connection with up to 10 meters working range - Plug and play NANO receiver - FR specification: - 16 working channel - Automatic frequency control - Carrier Frequency: 2402MHz~2479MHz - Modulation System: GFSK - Identification Code: 40bits - Receiving range and distance: 10M 360 degree - Output power: 0dbm (Max) - Transmission rate: 1Mbps (Max) - Working Voltage: 1.5V - Current: 30mA - Keyboard powered by 2 x AAA batteries (included) - Receiver voltage and current: DC 5V 30mA - USB interface size: 1.7cm x 1.2cm x 0.5cm - 1000dpi resolution optical mouse - Max Acceleration: 20G - Supports for Windows XP / Vista / 7 Mac OS X10.4 or later - Accessories: - 1 x NANO receiver - 1 x Quick start guide - 1 x Wireless Mouse (2 x AA batteries included)