Swivel Earpiece With In-Line Microphone and PTT

The Motorola HKLN4424A Swivel Earpiece with In-Line Microphone and PTT provides comfortable and convenient two-way radio communications for compatible Motorola portable radios.

Featuring a lightweight swivel over-the-ear design, the HKLN4424A can be positioned comfortably around the ear for secure everyday wear. The swivel ear loop provides flexibility in positioning the earpiece, making it a practical choice for users who need to wear their radio audio accessory throughout an extended work shift.

The accessory features an in-line microphone and Push-to-Talk (PTT) button, allowing users to transmit messages without repeatedly reaching for or removing the radio. Incoming radio communications are delivered directly through the earpiece, providing greater privacy than listening through the radio's external speaker.

The single-wire design helps keep cabling simple and manageable, while the direct Motorola 2-pin/M1 connection eliminates the need for a separate audio adapter on compatible radios.

The HKLN4424A is well suited for retail, hospitality, security, property management, education, maintenance, warehousing, event operations, and other professional applications where comfortable and convenient radio communications are important.

Key Features

• Swivel over-the-ear radio earpiece

• Lightweight design for comfortable everyday wear

• Single-ear listening configuration

• Single-wire accessory design

• Integrated in-line microphone

• Integrated in-line Push-to-Talk (PTT) button

• Allows users to transmit without reaching for the radio

• Provides more discreet reception of incoming radio communications

• Swivel ear loop for comfortable positioning

• Direct Motorola 2-pin / M1 radio connection

• No separate audio adapter required with compatible radios

• Wired design requires no batteries or charging

• No Bluetooth pairing required

• No volume control

• Genuine Motorola Solutions accessory

• Motorola part number: HKLN4424A

• Base part number: HKLN4424

Compatible Radios

Documented compatible Motorola radios include:

• Motorola Mag One BPR40

• Motorola CP100

• Motorola CP100d

• Motorola CP110

• Motorola CP125

• Motorola CP150

• Motorola CP185

• Motorola CP200

• Motorola CP200 XLS

• Motorola CP200d

• Motorola CT150

• Motorola CT250

• Motorola CT450

• Motorola CT450 LS

• Motorola GP300

• Motorola P1225

• Motorola P1225 LS

• Motorola PR400

• Motorola SP50

• Motorola SP50+

• Motorola VL130

Compatibility extends to additional Motorola portable radios using the appropriate 2-pin/M1 accessory interface. Always verify the specific radio model and accessory connector before ordering.

Important

The HKLN4424A is a transmit-and-receive audio accessory, not a receive-only earpiece. Incoming communications are heard through the swivel earpiece, while outgoing communications use the in-line microphone and Push-to-Talk button.

The accessory uses a Motorola 2-pin / M1 connector and connects directly to compatible portable radios without requiring a separate audio adapter.

The HKLN4424A does not include a volume control. Radio volume is adjusted using the controls on the connected radio.

Specifications

Manufacturer: Motorola Solutions
Part Number: HKLN4424A
Base Part Number: HKLN4424
Accessory Type: Swivel Earpiece with Microphone & PTT
Earpiece Style: Swivel Ear Loop / Ear Hook
Wearing Style: Over-the-Ear
Receive Configuration: Single Ear
Microphone: In-Line
Push-to-Talk: In-Line PTT
Transmit & Receive: Yes
Number of Wires: 1
Connector: Motorola 2-Pin / M1
Adapter Required: No
Volume Control: No
Bluetooth: No
Cord Length: Approximately 48 in.
Color: Black