Motorola HKLN4604 Earpiece with PTT
Single-Ear Earpiece • In-Line PTT • Lightweight • Hygienic • Wear on Either Ear
The Motorola HKLN4604 Earpiece with PTT is one of Motorola’s most comfortable single-ear headsets — designed to fit most ear sizes, light enough for all-day wear, and hygienic for shared use. It can be worn on either ear (and comfortably alongside hoop earrings), with an in-line push-to-talk button for quick, discreet radio access. It’s a practical business two-way radio accessory for retail, hospitality, and frontline teams — the same HKLN4604 headset worn by Walmart associates nationwide.
Who It’s For
Built for staff who need hands-free, discreet audio on a compatible Motorola radio. Prefer a clear acoustic tube for a more covert, professional look? Step up to the HKLN4477/HKLN4601 Single Wire Surveillance Earpiece. Want an over-the-ear D-style fit with VOX? See the HKLN4599 D-Style Earpiece.
Key Features
All-Day Comfort
Designed to accommodate most ear sizes and light enough to wear through a full shift without fatigue.
In-Line PTT
Integrated push-to-talk button puts quick, discreet transmit control right on the cord.
Wear on Either Ear
Reversible fit works on the left or right ear and sits comfortably even with hoop earrings.
Hygienic & Warranted
Easy to keep clean for shared use, and backed by a one-year full replacement warranty.
Compatible Radios
The HKLN4604 is a multi-platform Motorola earpiece that works across several popular series — including CLS, RDX, RM, CP100d and CP200d, plus DLR and DTR legacy models. Note that the RLN6423A is the same part as the RLN6423 and the HKLN4604, so any of those part numbers refer to this same earpiece.
Not sure if the HKLN4604 fits your radio? Browse our full commercial two-way radios and business two-way radios, or contact our Canadian radio experts — call 1-800-984-1534 and we’ll confirm the right accessory for your fleet.
Shop Compatible Radios & Accessories →
Frequently Asked Questions About the Motorola HKLN4604 Earpiece with PTT
• Which radios is the HKLN4604 earpiece compatible with?
The Motorola HKLN4604 is a multi-platform earpiece compatible with CLS, RDX, RM, CP100d, CP200d, and DLR and DTR legacy series radios. If you’re unsure about your specific model, contact our Canadian radio experts at 1-800-984-1534 and we’ll confirm fit before you order.
• Is the RLN6423A the same as the HKLN4604?
Yes. The RLN6423A is the same part as the RLN6423 and the HKLN4604. All three part numbers refer to this same Motorola earpiece with PTT, so you can order with confidence under any of those numbers.
• Can the HKLN4604 be worn on either ear?
Yes. The HKLN4604 is designed to be worn on either the left or right ear, fits most ear sizes, and sits comfortably even with hoop earrings, making it easy to share across a team.
• Does the HKLN4604 earpiece come with a warranty?
Yes. The Motorola HKLN4604 Earpiece with PTT comes with a one-year full replacement warranty.
