Note (The Open Box product is opened from a 100% clean carton with all its accessories, so its price is lower than the market) roduct details Is discontinued by manufacturer : No Batteries : 1 A batteries required. Product Dimensions : 6 x 20.3 x 15.3 cm; 340 Grams Release date : 28 Nov. 2017 ASIN : B077T9391Z Item model number : RZ07-02270100-R3M1About this item All-New Razer Mecha-Membrane for a soft cushioned touch with crisp tactile click.Analog Functionality : No 32 Fully Programmable Keys includes an 8-way directional thumb pad & scroll wheel Razer Chroma Customizable Backlighting with 16.8 million colour options Ergonomic Form with Detachable Palm Rest for a comfortable fit Razer Hyper shift Functionality for increased button control