Razer Viper V4 Pro: price & specs

Re-fetched both Razer pages via fetch-clean.mjs and verified each value verbatim. CONFIRMED: sensor 50000 ("FOCUS PRO 50K OPTICAL SENSOR GEN-3", "Enhanced with 50K DPI"); weight 49 g ("now even lighter at 49 g"; Black SKU "<49 g"; 50 g is the White Edition, so 49 g is correct for this Black SKU RZ01-05630100-R3U1); buttons 6 ("6 PROGRAMMABLE CONTROLS"); polling 8000 Hz ("enabling true 8000 Hz polling"); battery 180 hr ("UP TO 180 HOURS OF BATTERY LIFE"); switch "RAZER OPTICAL MOUSE SWITCHES GEN-4" (100M clicks); price "Starting from US$159.99" on the product page and "Product price: US$159.99" on the Black SKU page. Exact model confirmed (Razer Viper V4 Pro, Black SKU). CORRECTED: connectivity removed — the source states "Razer HyperSpeed Wireless Gen-2" but the qualifier "2.4 GHz" does not appear anywhere in either fetched page, so the value could not be confirmed verbatim. No explicit release date on either page, so release date and specs.release stay blank. 6 of 8 specKeys survive verification (>50%), so publish remains true. Both pages accessed 2026-07-07.