Key Features . Razer™ Low-Profile Linear Optical Switches (Red)Top-Class ConnectivityUltra-Long 40-Hour Battery LifeFull Size keyboardRazer Chroma™ RGB customisable backlighting with 16.8 million colour options . LOW-PROFILE ERGONOMICS.HIGH-PERFORMANCE WIRELESS. The Razer DeathStalker V2 Pro-a wireless ultra-slim optical keyboard is optimised for top performance and durability. Featuring new low-profile switches and Razer™ HyperSpeed Wireless for ultra-responsive gaming all housed within a durable ultra-slim casing for long-lasting ergonomic use. Ultra-fast Ultra-reliable Actuation Armed with the same lightning-fast response that’s a hallmark of all Razer optical keyboards the DeathStalker V2 Pro performs quicker keystrokes with all-new switches that have a shorter actuation height for reduced key travel and is backed by a 70-million keystroke lifespan for long-lasting performance..