Specification - Signature K855

Product Information
Component	Model Number (M/N)	Location
Keyboard	Y-R0078	Back of keyboard

Product Dimensions
Component	Height (mm / inch)	Width (mm / inch)	Depth (mm / inch)	Weight g / ounce
Keyboard	5.47 in (138.8 mm)	14.0 in (355.2 mm)	1.53 in (38.8 mm)	24.4 oz (692.4g) [with battery]
Retail Box / Brown Box	6.30 in (160mm)	14.6 in (370mm)	1.77 in (45mm)	33.9 oz (960g)

General Product Specifications
Software Support (at release)	Logitech Options+
OS/Platform Support (at release)	Logi Bolt: Windows 10 or later, Mac OS 10.15 or later, Chrome OS, Linux Bluetooth Low Energy: Windows 10 or later, Mac OS 10.15 or later, iOS 14 or later, iPadOS 14 or later, Chrome OS, Linux, Android 8 or later
Apps Available (at release)	Logitech Options+
System Requirements	Logi Bolt: Windows 10 or later, Mac OS 10.15 or later, Chrome OS, Linux Bluetooth Low Energy: Windows 10 or later, Mac OS 10.15 or later, iOS 14 or later, iPadOS 14 or later, Chrome OS, Linux, Android 8 or later

Keyboard Specifications
Connection Type	Logi Bolt, Bluetooth® Low Energy
Backlighting	No
Special Keys	Dictation key, Screen capture key, Emoji key, Mute/Unmute key (with Logi Options+ only)
Keyboard type	Mechanical switches
Durability (key presses)	50 million
Total Travel Distance (mm / inch)	4.0 mm
Battery Details	2 x AAA battery
Battery Life	36 months
Battery user replaceable?	Yes
Corded or Wireless	Wireless
Wireless range	10 m