Logitech Wave Keys MK670 (Wave Keys) Repair

The Wave Keys MK670 is an ergonomic wireless keyboard in Logitech's Wave series, sold as the Wave Keys MK670 Combo with the Signature M550 mouse. It emphasizes all-day comfort with a contoured wave-shaped key layout and extended palm support while maintaining a relatively compact footprint. The product and its packaging use recycled plastics and other durable materials as part of Logitech's sustainability program. Key features include compact low-profile keys, an integrated palm rest, and an included ergonomic Signature M550 mouse for medium to large hands.

The Logitech Wave Keys MK670 (Wave Keys) can be identified by the model number (M/N MR0091). The model label is on the underside of the keyboard; the mouse and USB receiver model markings are printed on their housings/USB plug. This label lists the model (M/N), part (P/N), and serial (S/N) numbers.

• Form Factor: Full-size ergonomic keyboard with integrated palm rest and compact keycap footprint
• Model / SKU: Wave Keys MK670 Combo — SKU/MPN 920-012059; productID mk670-wave-keys-mouse
• Components: Keyboard: Wave Keys MK670 (920-012059); Mouse: Signature M550 (model name listed on product page)
• Key Switches: Low-profile scissor-style (membrane) switches — proprietary Logitech design; exact manufacturer/model not disclosed on product page
• Connectivity: Wireless with included USB receiver (combo); product page lists a wireless combo but does not disclose the specific radio protocol
• Materials: Enclosure, keycaps and packaging include recycled plastics and durable consumer-grade plastics as noted in the product sustainability messaging
• Color / Layout: Graphite color, English US (QWERTY) layout; compact key spacing
• Power: Battery-powered (keyboard and mouse); exact battery types and runtime are not specified on the scraped product page
• Special Features: Wave-shaped contoured key layout for palm support, lightweight footprint, and included ergonomic Signature M550 mouse (designed for medium to large hands)
• Warranty / Support: Warranty varies by region; support and spare-parts information available through Logitech support pages (no spare parts listed on support page excerpt)

Common repair-relevant faults include non-registering or sticky keys (often caused by debris or liquid ingress), wireless connectivity or pairing failures with the USB receiver, and power/battery depletion. Diagnose by removing keycaps to inspect and clean debris, testing/replacing batteries, and re-pairing or reseating the USB receiver in different ports; check the underside label for model/SKU when sourcing replacement parts.

For additional troubleshooting help, visit: Support available via Logitech Support (https://support.logi.com). The product support page notes limited downloadable documentation and advises using Logitech support resources for help.

Warranty terms vary by region; users should check Logitech's warranty page for regional warranty length and claim instructions.

• https://www.logitech.com/en-us/shop/p/mk...
• https://support.logi.com/hc/en-us/articl...