1. Introducció
Thank you for choosing the Retevis EHK015 ANC Overhead Two-Way Radio Headset. This headset is designed to provide clear communication in noisy environments through Active Noise Cancellation (ANC) technology and a transparent mode. It features a comfortable over-ear design and is compatible with various two-way radios using a K-head 2-pin connector. Please read this manual thoroughly before use to ensure proper operation and maintenance.
2. Característiques del producte
- Cancel·lació activa del soroll (ANC): Utilizes an ANC chipset with soundwave inversion and in-ear speakers to neutralize external noise, providing a Noise Reduction Rating (NRR) of 28dB. Ideal for loud environments such as construction sites, racing events, or agricultural fields.
- Mode transparent: Allows users to hear surrounding conversations without removing the headset, ensuring situational awareness while maintaining communication capabilities. Activated by a long press of the ANC switch button.
- Comfortable Over-Ear Design: Features soft PVC leather ear cushions that conform to the ears and an adjustable headband for a secure and comfortable fit during extended use.
- Controles convenients: Equipped with an easy-to-access ANC switch button for activation/deactivation and a volume knob for precise audio level control.
- Dual Push-to-Talk (PTT) Buttons: Includes PTT buttons on both the earcup and the cable for flexible and easy communication activation.
- 260° Swivel Gooseneck Microphone: A flexible and adjustable microphone that can be positioned for optimal voice pickup and worn on either the left or right side.
- Connector K-Head de 2 pins: Ensures broad compatibility with a range of two-way radios.

Imatge: Detallada view of the Retevis EHK015 headset highlighting its key features including PTT buttons, adjustable headband, microphone, and controls.

Image: Diagram illustrating how Active Noise Cancellation (ANC) works by generating anti-noise sonic waves to cancel original noise, resulting in clear sound.

Image: The headset demonstrating Transparent Mode, allowing the user to hear ambient sounds without removing the headset.
3. Contingut del paquet
Verifiqueu que tots els elements siguin presents al paquet:
- 1x EHK015 ANC Headphone
- 1x K 2 Pin Jack PTT cable
- 1 x manual d'usuari
- 1x bossa d'emmagatzematge

Image: Visual representation of the items included in the Retevis EHK015 headset package: the headset, K 2-Pin PTT cable, user manual, and storage pouch.
4. Configuració
4.1 Instal·lació de la bateria
- Locate the battery compartment on one of the earcups.
- Obriu la coberta del compartiment.
- Insert two AA batteries (not included) according to the polarity markings.
- Tanqueu bé la tapa del compartiment de la bateria.
4.2 Connexió a la ràdio
- Ensure your two-way radio is turned off.
- Connect the K-head 2-pin connector of the PTT cable to the corresponding port on your radio. Ensure a firm connection.
- Connect the other end of the PTT cable to the headset's input jack.
- Turn on your two-way radio.

Image: Close-up of the K 2-Pin Connector, illustrating its design for compatibility with various two-way radios.
4.3 Ajust dels auriculars
- Place the headset over your head, ensuring the earcups fully cover your ears.
- Adjust the headband by sliding the earcups up or down until a comfortable and secure fit is achieved. The headband is adjustable to fit various head sizes.
- Position the flexible gooseneck microphone approximately 1-2 inches from your mouth for optimal voice transmission. The microphone can swivel 260° and can be worn on either side.

Image: Demonstrates the adjustable headband and soft PVC leather earpads for comfortable wear, along with head width and clamp force specifications.
5. Instruccions de funcionament
5.1 Cancel·lació activa del soroll (ANC)
- To activate ANC: Press the ANC switch button located on the earcup. An indicator light will confirm activation.
- To deactivate ANC: Press the ANC switch button again.
5.2 Transparent Mode
- To activate Transparent Mode: Long press the ANC switch button. This allows you to hear ambient sounds and conversations clearly without removing the headset.
- To deactivate Transparent Mode: Long press the ANC switch button again.
5.3 Using PTT Buttons
- The headset features two PTT buttons: one on the earcup and one on the cable.
- To transmit: Press and hold either PTT button. Speak clearly into the microphone.
- To receive: Release the PTT button.

Image: Illustrates the location of the dual PTT buttons (on earcup and cable) and provides details on the coiled cable length (116cm cord, 280cm stretch).
5.4 Ajust de volum
- Use the volume knob located on the earcup to adjust the audio output level to your preference.
5.5 Microphone Adjustment
- The 260° swivel gooseneck microphone can be rotated and bent to achieve the optimal position for clear voice transmission.
- It can be positioned on either the left or right side of the headset.
Video: Demonstrates the wearing details and adjustments of the Overhead Walkie Talkie Headset for optimal fit and microphone positioning.
Video: Provides operation tips for the Walkie-Talkie Headphones, covering various functions and controls.
6. Compatibilitat
The Retevis EHK015 headset is compatible with two-way radios featuring a K-head 2-pin connector. Known compatible devices include:
- Retevis: RT21, RT22, RT68, RT68H, H-777H, RA89, RA79, RB26H, RB66P, RT68B, RB58
- Baofeng: UV-5R, 5RM, BF-888S
- Other brands: Pxton, Arcshell AR-5, Kenwood, Samcom (with K-head 2-pin connector)

Image: Diagram illustrating the K-head 2-pin connector and its compatibility with various radio models like RT21, RT22, RT5R, RT3S, RT24, and H777.
7. Manteniment
- Neteja: Netegeu els auriculars amb un drap suauamp tela. No utilitzeu productes químics aggressivs ni netejadors abrasius.
- Emmagatzematge: Store the headset in the provided storage pouch in a cool, dry place when not in use to protect it from dust and damage.
- Cura de la bateria: Remove batteries if the headset will not be used for an extended period to prevent leakage.
- Cura del cable: Avoid sharp bends or excessive pulling on the cable to prevent internal wire damage. The coiled cable design helps prevent tangling.
8. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| No hi ha àudio dels auriculars | 1. Headset not properly connected. 2. Radio volume too low. 3. Batteries drained or incorrectly installed. | 1. Ensure K-head 2-pin connector is fully inserted into the radio and headset. 2. Increase radio volume. 3. Replace batteries or check polarity. |
| El micròfon no transmet | 1. PTT button not pressed. 2. Microphone not positioned correctly. 3. Radio settings. | 1. Press and hold PTT button firmly. 2. Adjust microphone closer to mouth. 3. Check radio's microphone settings. |
| L'ANC no funciona | 1. ANC switch not activated. 2. Batteries drained. | 1. Press the ANC switch button. 2. Substituïu les bateries. |
| Ajust incòmode | Headband or earcups not adjusted. | Adjust the headband and earcup positions for a snug yet comfortable fit. |
9. Especificacions
| Característica | Detall |
|---|---|
| Marca | Retevis |
| Nom del model | EHK015 |
| Número de model | FC9274A |
| Color | Negre |
| Col·locació de l'orella | Sobre l'orella |
| Control de soroll | Active Noise Cancellation (NRR: 28dB) |
| Tecnologia de connectivitat | Amb cable |
| Conector d'auriculars | Kenwood 2 Pin |
| Micròfon | Adjustable, 260° Swivel Gooseneck |
| Mètode de control | Push Button (ANC, PTT), Volume Knob |
| Font d'alimentació | 2x piles AA (no incloses) |
| Material | Acrylonitrile Butadiene Styrene (ABS), Leather, Metal |
| Pes de l'article | 1.2 lliures (aprox. 550 g) |
| Interval de freqüència | 85 Hz - 255 Hz |
| Longitud del cable | 116cm (cord), 280cm (stretch) |

Image: Detailed dimensions of the Retevis EHK015 headset, including height, width, and weight.
10. Garantia i Suport
Garantia: We provide a 1-year warranty for accessories and a 30-day no-reason return policy. Beyond the warranty period, we still offer maintenance services; buyers are required to cover corresponding costs.
Suport: For any inquiries or assistance, please contact us on Amazon. We aim to reply within 12 hours to provide the most hassle-free support possible.
11. Escenaris d'ús
The Retevis EHK015 headset is designed for environments where clear communication and hearing protection are essential. It is suitable for:
- Llocs de construcció
- Field service operations
- Racing events
- Agricultural work (e.g., farming, mowing)
- Factory environments
- Heavy equipment operation
Video: Illustrates various usage scenarios for the Overhead Walkie Talkie Headset, including farming, factory work, and heavy equipment operation.
Video: A sound quality demonstration of the Overhead Walkie Talkie Headset, showcasing its audio performance.