1. Introduktion
This manual provides detailed instructions for the proper use and maintenance of your Bietrun Wireless Microphone, model WXM04. Please read this manual thoroughly before operating the device to ensure optimal performance and longevity.
The Bietrun WXM04 is a UHF metal dynamic handheld microphone designed for various applications, including karaoke, public speaking, and musical performances. It features a rechargeable receiver and offers a wireless range of up to 160 feet (50 meters).
2. Pakkens indhold
Bekræft at alle varer er til stede i pakken:
- Bietrun Wireless Handheld Microphone (WXM04)
- Rechargeable Wireless Receiver
- USB Charging Cable (for receiver)
- 6.35mm to 3.5mm Adapter (if applicable)
- Brugervejledning (dette dokument)

3. Specifikationer
| Feature | Detalje |
|---|---|
| Modelnummer | WXM04 |
| Mikrofon formfaktor | Håndholdt |
| Forbindelsesteknologi | UHF trådløs |
| Wireless Range | Op til 160 fod (50 meter) |
| Justerbare kanaler | 15 UHF kanaler |
| Polar mønster | Unidirectional (Moving-Coil) |
| Mikrofonstyrke | 2 x AA batterier (medfølger ikke) |
| Modtager batteri | Built-in 650mAh Lithium Polymer (Rechargeable) |
| Receiver Working Time | Cirka 4 timer |
| Opladningstid for modtager | Approximately 3 hours (5 hours for first use) |
| Materiale | Metal (Microphone outer case) |
| Signal-støjforhold | 120 dB |
| Frekvensrespons | 50Hz - 18kHz |
| Dimensioner (mikrofon) | 9.84 x 1.96 tommer (250 x 50 mm) |
| Dimensioner (modtager) | 4.3 x 1.29 tommer (110 x 33 mm) |
| Vægt (mikrofon) | Cirka 540 g (1.19 lbs) |
| Kompatibel indgang | 6.35mm (1/4 inch) MIC input only |

Vigtig bemærkning:
- This microphone system is designed exclusively for devices with a MIC indgang. It is not compatible with AUX inputs, Bluetooth speakers, or laptops.
- While some general product specifications may list compatibility with 'Camera, Laptop, PC' or 'Smartphone', the specific feature bullets for this model explicitly state incompatibility with Bluetooth speakers and laptops, and emphasize 'MIC input only'. Please adhere to these specific warnings for optimal performance and to avoid issues.
4. Opsætningsvejledning
4.1. Opladning af modtageren
- Before first use, fully charge the receiver for approximately 5 hours.
- Connect the provided USB charging cable to the receiver's charging port and to a standard USB power source (e.g., computer USB port, USB wall adapter).
- The charging indicator light will show the charging status. It will typically turn off or change color when fully charged.

4.2. Installation af mikrofonbatterier
- Unscrew the bottom part of the microphone to access the battery compartment.
- Insert two AA alkaline batteries (not included) into the compartment, ensuring correct polarity (+/- direction).
- Securely screw the bottom part back onto the microphone.

4.3. Connecting to an Audio Device
- Ensure your audio device (e.g., speaker, amplifier, PA system, mixer, karaoke machine) has a 6.35mm (1/4 inch) MIC input.
- Plug the rechargeable receiver directly into the 6.35mm MIC input port of your audio device.
- If your device has a 3.5mm MIC input, use the included 6.35mm to 3.5mm adapter.

5. Betjeningsvejledning
5.1. Tænd og parring
- Long press and hold the power button on both the microphone and the receiver simultaneously to power them on.
- The microphone and receiver are designed for automatic pairing. The display on the microphone will show the channel number and battery status. The blue light on the receiver will become solid once successfully paired.
- The microphone display will show battery power and signal strength in real-time.

5.2. Justering af lydstyrke og kanaler
- Lydstyrkekontrol: Use the switch on the microphone to adjust the volume (typically levels 8-12).
- Kanalskift: If you experience interference or are using multiple microphones, you can change the operating channel.
- Open the microphone battery cover.
- Locate and click the "HI LO" button inside the battery compartment.
- Ensure each microphone operates on a different channel, and ideally, choose channels that are far apart to minimize interference.
5.3. Mikrofonbrug
- The microphone features a professional moving-coil unidirectional core. For optimal sound pickup and loud voice projection, position your mouth close to the top of the microphone.
- The wireless range is up to 160 feet (50 meters). Maintain a clear line of sight between the microphone and receiver for best performance.

6. Vedligeholdelse
- Rensning: Brug en blød, tør klud til at rengøre mikrofonen og modtageren. Undgå at bruge skrappe kemikalier eller slibende materialer.
- Opbevaring: Opbevar enheden et køligt, tørt sted væk fra direkte sollys og ekstreme temperaturer.
- Batteripleje:
- Fjern AA-batterier fra mikrofonen, hvis den ikke skal bruges i længere tid, for at forhindre lækage.
- For the rechargeable receiver, avoid fully discharging the battery frequently to prolong its lifespan. Recharge it regularly.
- Håndtering: The microphone features an alloy metal casing for durability, but avoid dropping or subjecting it to strong impacts.
7. Fejlfinding
7.1. No Sound from Microphone
- Tjek strøm: Ensure both the microphone (AA batteries) and the receiver (rechargeable battery) have sufficient power. Recharge the receiver if necessary, and replace AA batteries in the microphone.
- Korrekt indtastning: Verify that the receiver is plugged into a MIC indgang (6.35mm or 3.5mm with adapter) on your audio device, not an AUX input.
- Genparring: If the microphone and receiver lose connection or do not pair automatically:
- Turn off both the receiver and the microphone.
- Open the microphone battery cap.
- Press and hold the "HI LO" button inside the microphone's battery compartment for 10 seconds or more until the display channel on the microphone flashes.
- Quickly turn on the receiver.
- Wait for the microphone channel display to stop flashing. The blue light on the receiver should become solid, indicating successful re-pairing.
7.2. Interference or Noise
- Skift kanal: If you experience static, dropouts, or interference, change the operating channel of the microphone as described in Section 5.2. Ensure that if multiple microphones are in use, they are on different and well-separated channels.
- Afstand: Ensure the microphone is within the effective wireless range (up to 160 feet) and that there are no major obstructions between the microphone and receiver.
- Andre enheder: Keep the microphone system away from other wireless devices or strong electromagnetic fields that might cause interference.
8. Garanti og support
Bietrun products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official Bietrun webwebsted.
You can visit the Bietrun Store on Amazon for more information: Bietrun Amazon Store





