This was a Xmas gift ... used for about a week

<1ms response time with Slipstream Wireless

Connect with USB dongle, Bluetooth or wired

Individually Backlit RGB Keys

Wired Connectivity -- USB 2.0 or 3.0 Type-A

Item model number ‎CH-925C015-NA

Keyboard Dimensions -- 480mm x 166mm x 35mm

Keyboard Battery Life -- Up to 35 hours with RGB backlighting or 175 hours with backlighting off.

Battery Type -- Rechargeable Lithium-Ion

Dynamic per-key RGB backlighting from Capellix LEDs which are brighter and consume less power than conventional RGB LEDs

Rubber-domed switches (these are NOT mechanical)

Six programmable macro keys

A detachable rubber palm rest

Dedicated Volume and multimedia controls