Logitech ERGO K860

"A FEEL-BETTER TYPING EXPERIENCEIntroducing ERGO K860, a split ergonomic keyboard designed for better posture, less strain, and more support. You'll type more naturally with a curved, split keyframe that improves typing posture. The sloping form reduces muscle strain on your wrists and forearms – keeping your hands and shoulders relaxed.BETTER POSTURE, BETTER RESULTSERGO K860's curved keyframe places your hands, wrists, fingers and forearms in a more natural posture – you'll notice the lack of strain the moment your hands land on the keyboard. ERGO K860 has even been proven to reduce muscle activity by 21% in the upper trapezius muscle 2Compared to a traditional Logitech keyboard without palm rest — key muscle in the center of the back that stabilizes and facilitates shoulder and neck movement.THREE LAYERS OF COMFORT AND SUPPORTA pillowed wrist rest places your forearms just above the keyboard, offering 54% more wrist support while reducing wrist bending by 25%.3Compared to a traditional Logitech keyboard without palm rest1. SURFACE LAYER: 0.5 mm of KNITTED FABRIC with a durable, stain-resistant, and easy-clean coating that's smooth to the touch.2. SUPPORT LAYER: 2 mm HIGH-DENSITY FOAM provides a comfortable, firm feel that equally disperses pressure.3. COMFORT LAYER: 4 mm of MEMORY FOAM offers a pleasing and personalized give, improving the feel of comfort and relaxation.GIVE YOUR WRISTS A LIFTKeep your wrists in a natural and comfortable posture, whether you're seated or standing with an innovative palm lift feature. Tilt legs of 0°, -4°, and -7° lift your palms into the optimal ergonomic position depending on your unique set up.EFFORTLESS PRECISION WITH PERFECT STROKE KEYSA fluid and ultra-precise typing experience with no compromise in speed and accuracy. Your fingers glide effortlessly across the matte surface of the keys, and tactile details make it easy to orient your fingers and stay focused. The split layout and convex curve promote a more natural hand and finger placement.Connection support2.4 GHz USB receiverBluetooth low energy technologySoftware supportLogitech Options™ on macOS 10.11 and above and Windows 7 and aboveBattery type2xAAA BatteriesWireless range10 m wireless range 4Wireless range may vary depending on operating environment and computer setup.Wireless encryption 5Wireless encryption is between keyboard and the connected computer or mobile device.Package ContentsErgonomic KeyboardUSB Receiver2 X AAA batteriesQuick Start Guide"