1. Introduction
The Retevis EEK018 G-Shape Earpiece is a versatile 1-wire coiled top cable covert acoustic tube earpiece designed for two-way radios. It is ideal for various professional environments requiring discrete communication, such as law enforcement, security, hospitality, event coordination, and more.

2. Features
- VOX or PTT Mode: Offers flexibility with voice-activated (VOX) or push-to-talk (PTT) operation.
- Coiled Top Cable: Stretchable coiled cable provides enhanced flexibility and freedom of movement.
- G-Shape Ear Hanger: Secure and comfortable rubber G-shape design can be worn on either ear.
- Full-size PTT Button: Large Push-to-Talk button is easily operable, even with gloves.
- Integrated Design: 1-wire design with inline PTT and microphone for streamlined use.
- Sturdy Clothing Clip: Metal clip securely attaches to shirt collars or lapels.
- Reinforced Cables: Designed with reinforced cables for superior strength and durability.
- Clear Audio: High-quality microphone and speaker ensure crystal clear communication.
- Kenwood 2Pin Connector: Compatible with most two-way radios featuring a Kenwood 2-pin interface.


3. Setup
- Connect to Radio: Insert the 2-pin connector firmly into the corresponding port on your compatible two-way radio. Ensure both pins are correctly aligned and fully seated to establish a secure connection.
- Wear the Earpiece: Gently place the G-shape ear hanger over your ear. Adjust its position until the speaker sits comfortably and securely in your ear, allowing for clear audio reception. The design allows for wear on either the left or right ear.
- Secure the PTT Unit: Use the sturdy metal clip on the PTT (Push-to-Talk) unit to attach it to your shirt collar, lapel, or other convenient clothing. This ensures easy access for transmission.


4. Operating Instructions
4.1. Push-to-Talk (PTT) Mode
To transmit your voice, press and hold the PTT button located on the inline unit. Speak clearly into the microphone. Release the PTT button when you are finished speaking to return to receive mode.
4.2. Voice Operated Exchange (VOX) Mode
If your two-way radio supports VOX functionality, you can enable it through your radio's settings. When VOX is active, the earpiece's microphone will automatically detect your voice and initiate transmission without the need to press the PTT button. Adjust the VOX sensitivity on your radio to prevent accidental transmissions or missed voice activation.
4.3. Volume Adjustment
Adjust the volume directly on your two-way radio to achieve a comfortable listening level through the earpiece.
5. Maintenance
- Cleaning: Regularly wipe the earpiece, cable, and PTT unit with a soft, slightly damp cloth. Avoid using harsh chemicals, solvents, or abrasive cleaners, as these can damage the materials.
- Storage: When not in use, store the earpiece in a clean, dry place away from direct sunlight and extreme temperatures. Avoid tangling the coiled cable to maintain its flexibility and prevent damage.
- Inspection: Periodically inspect the cable for any signs of wear, cuts, or fraying, especially near the connectors and the PTT unit.
6. Troubleshooting
- No Audio or Poor Audio Quality:
- Ensure the 2-pin connector is fully and securely inserted into the radio's port.
- Check the radio's volume level and increase it if necessary.
- Verify that the earpiece speaker is positioned correctly in your ear.
- Inspect the cable for any visible damage.
- Microphone Not Transmitting:
- If in PTT mode, ensure the PTT button is pressed firmly while speaking.
- If using VOX, check your radio's VOX settings and sensitivity.
- Confirm the 2-pin connector is properly connected to the radio.
- Intermittent Connection:
- Remove and re-insert the 2-pin connector to ensure a solid connection.
- Check for any debris in the radio's connector port.
7. Specifications
| Component | Specification |
|---|---|
| Speaker | |
| Diameter | Ø15mm*5.5mm |
| Impedance | 32 Ohm±15% at 1kHz |
| Sound pressure level | 115±3 dB at 0.179V/0.1mW/1kHz |
| Rated power | 2mW |
| Maximum output power | 3mW |
| Microphone | |
| Types | Condenser electret microphone |
| Maximum impedance | 2.2k Ohm |
| Sensitivity | -40±3 dB at 1kHz (0Db=1V/Pa) |
| Operating Voltage | 1.5-10VDC |
| Plug wire | Diameter 3.0mm PU 4-core straight wire 1.0m |
| Ear hook | Diameter 1.95mm PU 2-core coiled wire |

8. Compatible Two-Way Radio Models
The Retevis EEK018 G-Shape Earpiece is designed for use with two-way radios featuring a Kenwood 2-pin connector. A comprehensive list of compatible models includes:
| Brand | Compatible Models |
|---|---|
| Retevis | RT5R, RT5RV, H777, RT1, RT2, RT5, RT3/RT3S, RT7, RT81, RT22, RT22S, RT24, RT25, RT26, RT27, RT80, RT28, RT28P, RT50, RT84, RT15, RT17/RT617, RT51, RT52, RT46, RT18/RT618, RT53, RT19/RT619, RT66/RT666, RT67/RT667, RT68/RT668, RT56, RT69/RT669, RT43, RT76, RT71, RT72, RB17/RB617, RB18/RB618, RT85, RB35/RB635, RB26, RA16/RA616, RT86, RB37/RB637, RB25, RT10, RB38V, RB27, RB27B/RB627B, RB27V, RB627V, RB28/RB628, RB29 RB629, RB20, RB85, RB17V, RT56B, RB17A |
| Kenwood KPG | KPG27D, KPG29D, KPG48D, KPG49, KPG55D, KPG56D, KPG62D, KPG66D, KPG69D, KPG70D, KPG74D, KPG75D, KPG77D, KPG82D, KPG87D |
| Kenwood TH | TH-D7, TH-D7A, TH-D7AG, TH-D7E, TH-F6, TH-F6A, TH-F7, TH-F7E, TH-G71, TH-G71A, TH-G71E, TH-K2, TH-K2A, TH-K2E, TH-K2ET, TH-21, TH-21AT, TH-21BT, TH-22, TH-22A, TH-22AT, TH-22E, TH-25, TH-26, TH-27, TH-28, TH31AT, TH31BT, TH41AT, TH41BT, TH-42, TH-42A, TH-42AT, TH-42E, TH-45, TH-46, TH-47, TH-48, TH-55, TH-75, TH-77, TH-G71, TH-205, TH-215, TH-225, TH-235, TH-235A, TH-235E, TH-315, TH-415 |
| Kenwood TK | TK-208/308, TK-220/320, TK-240/340, TK-240D/340D, TK-248/348, TK-250/350/353, TK-260/360, TK-260G/360G, TK-270/370, TK-270G/370G, TK-272G/372G/373G, TK-278G/378G/388GPro-Talk, TK-430/431, TK-2100/3100Pro-Talk, TK-2102/3102 Pro-Power, TK-2107/3107 Pro-Talk, TK2207, TK3207, TK-2160/3160 |
| BAOFENG | Almost All: UV5R, UV5RA, UV5RB, UV5RC, UV5RD, UV5RE, UV5REPlus, UV5R+, UV5RO, A52, UV8, UV8D, UVB5, UVB6, BF480/490/320/V6/V7/V8/658/520/530/999/888/777/666S/777S/888S/388A/F8+/A5/ |
| HYT | TC286 386 2685 3865 6685, TC 278 378 388, TC 2100 2088 |
| WOUXUN | KG-UV1D/KG-UV2D/UVDIP/KG-669/659/679/689/639/699/801 |
| PUXING | PX333/888/888K/328/358/999/666/777/777PLUS |
| QUSHENGAN | TG-K4AT/2AT/22AT/45AT/42AT/25AT/UV |
| LINTON | LT-2288/3288/6288/5288/3188/2188/3260/2268/3268 /6288/6188/3288A |
| WEIERWEI | VEV-3288S, VEV-6288, VEV-3288 |

Notice: If your radio model is not listed above, please contact customer service for assistance to ensure compatibility.
9. User Tips
- Check Compatibility: Always verify that your radio model is listed in the compatibility section or consult with the manufacturer if unsure, to ensure optimal performance.
- Comfortable Fit: Take a moment to adjust the G-shape ear hanger for a snug yet comfortable fit. A good fit improves both audio clarity and long-term wearability.
- Cable Management: Utilize the coiled cable's flexibility to route it discreetly and prevent snagging. The clothing clip helps keep the PTT unit in an accessible and stable position.
10. Warranty and Support
For warranty information and customer support, please refer to the documentation provided with your purchase or contact the seller directly. Ensure you retain your proof of purchase for any warranty claims.