PERIBOARD-535II Wired Ergo-Mechanical Keyboard Keyboard language:English (US) Built-in rechargeable lithium battery lasts

Built-in rechargeable lithium battery lasts 36 hours with continuous typing/standby mode for up to 30 days

Comfortably Compact- Minimal design keyboard with compact design for better typing experience

98 inch (25 mm) diameter trackball with optical tracking technology to provide precise cursor control

Replacement receivers are available separately on Amazon

adjust display brightness and media control

PERIBOARD-535II Wired Ergo-Mechanical Keyboard Keyboard language:English (US) Built-in rechargeable lithium battery lastsSplit Key Ergonomic Design: One piece split layout separates keys into left and right zones to reduce wrist bending and promote a natural hand position. Dimensions: 18. 66 7. 95 1. 73 in; Weight: 2. 37 lb (1043g). Ideal for long typing sessions. Low Profile Clicky Mechanical Switches: Low profile blue mechanical keys deliver loud, clicky feedback with a tactile bump and fast key reset. Ideal for users who prefer audible confirmation for coding,