Specification - Signature MK855

Product Information
Component	Model Number (M/N)	Location
Keyboard	YR0078	Label inside the battery compartment
Mouse	MR0091	Label inside the battery compartment

What's in the Box?

2 AAA batteries (pre-installed), User documentation, 1 AA battery, 1 Logi BOLT receiver

Physical Specifications
Component	Height	Width	Depth	Weight
Keyboard	138.8 mm (5.47 inches)	355.2 mm (14.0 inches)	38.8 mm  (1.53 inches)	692.4g (24.4 oz) with battery
Mouse	38.3 mm  (1.5 inches)	60.5 mm  (2.38 inches)	107.7 mm  (4.24 inches)	74.7g without battery/ with receiver Receiver:1.8g Battery: 25g

General Product Specifications
Software Support (at release)	Logitech Options+
OS/Platform Support (at release)	Windows macOS
System Requirements	Windows 10, Windows® 11 or later macOS 10.15 or later Linux Chrome OS iPadOS 14 or later iOS 14 or later Android 8.0 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 batteries
Battery life	36 months
Battery user replaceable?	Yes
Corded or wireless	Wireless
Wireless range	10 m
Temperature and Humidity (Non-operating)	-5°C ~ 55°C 0% ~ 95%RH
Temperature and Humidity (Operating)	0°C ~ 40°C 10% ~ 90%RH

Mouse Specifications
Microprocessor	Microprocessor: 32-bit ARM
DPI (Min/Max)	Resolution: 400 – 4,000 DPI (SW)
Sensor	Pluto One
Indicator Lights (LED)	TOP: (1) battery indicator / BOTTOM: (3) connectivity
Buttons	5 buttons + DPI button + Connectivity button
Durability (button presses)	Buttons (Left / Right - Silent): 5-million clicks Buttons (Wheel - middle click silent): 1-million clicks Buttons (Forward&Backward): 500K clicks Buttons (DPI): 500K clicks Connectivity button(host button): 3K clicks
Durability feet	Material type + KM Range, PTFE Feet: 100km range
Gesture Support (Windows)	With software
Gesture Support (Mac)	With software
Materials used	PCR Plastic: (Kingfa35%PCR Or Wistron 85%PCR) Rubber: (TOPOLYMER A005&A030 )
Other Features	SmartWheel
Battery Details	1xAA
Battery Life (not rechargeable)	24 months
Battery user replaceable?	Yes
Corded or Wireless	Wireless
Wireless range	10 m
Temperature and Humidity (Non-operating)	-5°C ~ 55°C 0% ~ 95%RH
Temperature and Humidity (Operating)	0°C ~ 40°C 10% ~ 90%RH

Receiver Specifications
Connection Type	BOLT + Bluetooth Low Energy Direct (3 channels)
USB VID_PID (Mezzi RCV)	VID_046D&PID_C548
USB Protocol (Mezzi RCV)	USB 2.0
USB Speed (Mezzi RCV)	Full Speed
USB Data Format (Mezzi RCV)	16 bits/axis
USB Report Rate (Mezzi RCV)	1ms
BOLT Report Rate	7.5ms
Bluetooth Low Energy Report Rate	7.5-11.25 ms