1. Introduktion
Thank you for choosing the Retevis RT637 Kids Walkie Talkie. This device is designed for clear and reliable communication, offering a fun and safe way for children to interact. This manual provides essential information for proper setup, operation, and maintenance to ensure optimal performance and longevity of your walkie talkies.

Image 1.1: Retevis RT637 Kids Walkie Talkies
2. Produktfunktioner
- 16 Channels & 99 Privacy Codes: Minimizes interference and allows for secure communication.
- Børnevenligt design: Ergonomically designed for small hands, made from durable, non-toxic PC+ABS plastic with excellent impact and heat resistance.
- Alsidig kommunikation: Supports one-to-one or one-to-many communication.
- VOX funktion: Enables hands-free communication without pressing the 'TALK' button.
- LED lommelygte: Provides illumination for nighttime play or emergency situations.
- Lang distance: Powerful transmitter and high reception sensitivity ensure stable signal over distance.
- Tastlås funktion: Prevents accidental channel changes during play.
- Automatic Squelch: Reduces background noise for clearer sound.

Billede 2.1: Nøglefunktioner ovenforview (Note: This model features 16 channels, not 22 as depicted in the graphic.)
3. Pakkens indhold
Tjek venligst pakken for følgende varer:
- 2 x Retevis RT637 walkie-talkies
- 2 x bælteclips
- Brugervejledning (dette dokument)
Note: AAA batteries are not included and must be purchased separately (8 x AAA batteries required for a pair).

Image 3.1: Product Contents and Dimensions
4. Enhedens dele

Image 4.1: Retevis RT637 Parts Diagram
- Antenne: Til at sende og modtage signaler.
- Kanalindikator: Viser den aktuelle kanal.
- PTT (Push-To-Talk)-knap: Tryk og hold nede for at sende din stemme.
- Tænd/sluk-/menuknap: Press and hold to power on/off. Press briefly to access menu settings.
- Opkaldsknap: Press to send a call tone.
- Op-knap: Navigerer op i menuer eller øger værdier.
- Lamp Knap: Aktiverer LED-lommelygten.
- Ned-knap: Navigerer ned i menuer eller mindsker værdier.
- Taleknap: Alternative to PTT for transmitting voice.
- Højttaler: Udgange modtaget lyd.
5. Opsætning
5.1 Batteriinstallation
Each RT637 walkie talkie requires 4 AAA batteries (not included).
- Locate the battery compartment cover on the back of the walkie talkie.
- Push down on the clip and slide the cover off.
- Isæt 4 AAA-batterier, og sørg for at polerne vender korrekt (+/-).
- Sæt dækslet til batterirummet på igen, og skub det, indtil det klikker på plads.

Image 5.1: Battery Compartment and Belt Clip
5.2 Tænd/sluk
- For at tænde: Tryk og hold på Strøm/menu button until the LCD screen illuminates.
- For at slukke: Tryk og hold på Strøm/menu knappen, indtil LCD-skærmen slukker.
6. Betjeningsvejledning
6.1 Kanalvalg
Your RT637 walkie talkie has 16 available channels.
- Når walkie-talkien er tændt, skal du trykke på Strøm/menu button once. The channel number will flash on the LCD screen.
- Brug Up or Ned knapperne til at vælge den ønskede kanal (1-16).
- Tryk på Strøm/menu knappen igen for at bekræfte kanalvalget.
6.2 Privatlivskoder (CTCSS/DCS)
The RT637 supports 99 privacy codes (CTCSS/DCS) to minimize interference from other users on the same channel.
- After selecting a channel (as described above), press the Strøm/menu knappen to gange. Privathedskodenummeret vil blinke.
- Brug Up or Ned buttons to select your desired privacy code (01-99). Code '00' means no privacy code is active.
- Tryk på Strøm/menu button again to confirm the privacy code.
For successful communication, all walkie talkies in your group must be set to the same channel and privacy code.
6.3 Afsendelse og modtagelse
- At sende: Tryk og hold på PTT knap (eller Tale button) and speak clearly into the microphone. Release the button when you finish speaking.
- At modtage: The walkie talkie will automatically receive messages when not transmitting. Ensure the volume is set to an audible level.

Image 6.1: Long Range Communication Example
6.4 VOX-funktion (stemmestyret central)
The VOX function allows you to transmit without pressing the PTT button. When VOX is active, the walkie talkie will automatically transmit when it detects your voice.
- Tryk på Strøm/menu button repeatedly until 'VOX' appears on the screen.
- Brug Up or Ned buttons to select the VOX sensitivity level (e.g., 1-3, with 1 being most sensitive). Select 'OF' to turn VOX off.
- Tryk på Strøm/menu knappen for at bekræfte.
6.5 LED lommelygte
For at aktivere den indbyggede LED-lommelygte skal du trykke på Lamp button. Press it again to turn the flashlight off.

Image 6.2: LED Flashlight in Use
6.6 Tastlåsfunktion
The key lock function prevents accidental button presses, such as changing channels.
- To Lock Keys: Tryk og hold på Strøm/menu button until a key icon appears on the LCD screen.
- To Unlock Keys: Tryk og hold på Strøm/menu button again until the key icon disappears.
6.7 Opkaldstone
Your walkie talkie has multiple call tones to alert other users. To send a call tone, simply press the Ring knap.

Image 6.3: Call Tone Feature
7. Vedligeholdelse
- Rensning: Tør enheden af med en blød, damp klæde. Brug ikke skrappe kemikalier eller slibende rengøringsmidler.
- Batteripleje: Remove batteries if the device will not be used for an extended period to prevent leakage. Replace all batteries at the same time.
- Opbevaring: Store the walkie talkies in a cool, dry place away from direct sunlight and extreme temperatures.
- Vandtæthed: Denne enhed er ikke vandtæt. Undgå udsættelse for vand eller høj luftfugtighed.

Image 7.1: Drop Resistant Design
8. Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Ingen strøm | Batterier er forkert installeret eller afladet. | Kontroller batteripolariteten. Udskift med nye AAA-batterier. |
| Kan ikke kommunikere med andre walkie-talkies | Forskellige kanaler eller privatlivskoder. Uden for rækkevidde. | Ensure all devices are on the same channel and privacy code. Move closer to the other device. |
| Dårlig lydkvalitet / Statisk | Svagt signal. Interferens. Lavt batteri. | Move to an open area. Avoid obstacles. Replace batteries. |
| VOX virker ikke | VOX sensitivity too low or off. | Adjust VOX sensitivity to a higher level in the menu. |
| Tasterne reagerer ikke | Key lock function is active. | Press and hold the Power/Menu button to unlock the keys. |
9. Specifikationer
Voltage| Feature | Specifikation |
|---|---|
| Modelnummer | EUA9168F (RT637) |
| Mærke | Retevis |
| Farve | Orange |
| Antal kanaler | 16 |
| Privatlivskoder | 99 (CTCSS/DCS) |
| Frekvensområde | 446.00625-446.09375Mhz |
| Maksimal rækkevidde | 1 kilometer (ca. 0.62 miles) |
| 4 volt | |
| Strømkilde | 8 x AAA batteries (4 per walkie talkie, not included) |
| Vandmodstandsniveau | Ikke vandtæt |
| Produktmål (H x B x D) | 153 x 49 x 20 mm (ca. 6.02 x 1.93 x 0.79 tommer) |
| Materiale | Durable PC + ABS plastic |

Image 9.1: LCD Display
10. Garanti og support
Retevis tilbyder en 30 dages returret for no reason and a 90 dages garanti for this product. For any questions, technical support, or warranty claims, please contact Retevis customer service through the retailer where the product was purchased.
For more information about Retevis products, you can visit the official Retevis store: Retevis-butik





