• Product Overview: The Sony WH-CH520 wireless on-ear headphones combine long-lasting battery endurance with reliable audio performance for everyday listening. Powered by Sony’s Digital Sound Enhancement Engine (DSEE), they restore high-frequency detail to compressed digital music files for authentic sound reproduction. Featuring Bluetooth 5.2 with Multipoint connection, they allow seamless switching between two devices such as a smartphone and laptop. Designed for extended wear, the lightweight frame features soft earpads, an adjustable padded headband, and swivel earcups for easy storage. With an exceptional 50-hour battery capacity, quick charging via USB-C, custom EQ tuning through the Sony Headphones Connect app, and crystal-clear hands-free calling, the WH-CH520 is a practical choice for daily audio needs. • Key Highlight 1: Up to 50 Hours Battery Life - Massive battery endurance providing 50 hours of continuous wireless playback with 3-minute quick charging (1.5 hours play). • Key Highlight 2: DSEE Audio Enhancement - Sony’s Digital Sound Enhancement Engine restores high-frequency elements lost in digital compression for richer audio depth. • Key Highlight 3: Bluetooth Multipoint Connection - Effortlessly pair and switch between two Bluetooth devices simultaneously for calls and media. • Key Highlight 4: Lightweight Ergonomic Design - Cushioned ear pads, padded headband adjustment, and swivel earcups deliver comfortable all-day listening.