ShopClues: Quantum 9440 Wireless Combo With Quantum 316 Headset Free @818 Quantum 9440 Wireless Combo With Quantum 316 Headset Free http://www.shopclues.com/quantum-9440-wireless-combo-with-quantum-316-headset-free.html List Price: 1395 Selling Price: 990 Deal Price: 794 Shipping Charge: 24 Use coupon: SCQC94 Offer valid till 20th May Features of KeyboardWireless technology: 2.4GHZ Working distance: 10m Unit size: 484*194*23mm Unit weight: 405g Button: 104 Hot keys: 19 Keystroke route: 2.0mm Keyswitch operation force: 50+/-5g Rated working voltage/current: DC 3V/0.85mA Power supply: 2AAA battery Features of MouseWireless technology: 2.4GHZ Working distance: 10m Unit size: 115*77*39mm Unit weight: 67g Button:7 Keystroke route: 0.8mm Keyswitch operation force: 70+/-5g Key life: over 3 millions times Rated working voltage/current: DC 1.5V/22mA Power supply: 1AA battery Features Of HeadsetSpeaker: 27mm Dynamic Type Impedance: 32 Ohms Sensitivity: 62db Frequency Response: 100~1500Hz Maximum Power Input: 100mW Polar Pattern: Omni-directional Microphone: Condeser type Cord Length: 6 feet (1.6m) Cable Length: 6 Feet (1.6m) Connector: 3.5mm stereo plugx2