Introducció
Thank you for choosing the Dolphin MCX21 Wireless Microphone System. This system is designed to provide crystal clear audio with advanced features like noise cancellation, DSP, and long-range capabilities, making it ideal for various applications including karaoke, weddings, parties, and events. This manual will guide you through the setup, operation, and maintenance of your new wireless microphone system.
Què hi ha a la caixa
Si us plau, comproveu el contingut del paquet per assegurar-vos que hi hagi tots els elements:
- 2x Dolphin MCX21 Wireless Microphones
- 1x receptor sense fil
- 1x USB-C Charge Cable
- 3x Rechargeable Lithium Ion Batteries (18650 type)
- 2x Mic Holders (anti-rolling sleeves)

Image: The complete Dolphin MCX21 Wireless Microphone System package, including two microphones, a receiver, batteries, USB-C cable, and mic holders.
Característiques clau
- Crystal Clear Sound & Anti-Interference: High sensitivity and low noise design with advanced technology for minimal interference.
- Processament de senyal digital (DSP): Reduces distortion and enhances sound quality for true-to-life audio.
- Long Range Use: Operates over a distance of 30+ meters for freedom of movement.
- Disseny complet de metall: Durable and robust construction for long-lasting performance.
- Long Battery Life & Easy Recharge: Up to 10 hours of continuous use with USB-C rechargeable batteries.
- High Quality Sound: Ensures reliable, uninterrupted performance.

Image: A close-up of the Dolphin MCX21 microphone, illustrating its key features and functions.
Guia de configuració
- Càrrega de bateries: Insert the provided rechargeable Lithium Ion batteries into each microphone. Connect the USB-C charge cable to the receiver and a power source (e.g., USB wall adapter, computer USB port) to charge the receiver's internal battery. Ensure all components are fully charged before first use.
- Connecta el receptor: Plug the wireless receiver into the 1/4-inch (6.35mm) input jack of your audio device (e.g., amplifier, PA system, karaoke machine, speaker). If your device uses a 3.5mm input, you may need a compatible adapter (not included).
- Encès: Turn on the wireless receiver. The indicator light on the receiver will illuminate.
- Activate Microphones: Turn on each microphone by pressing its power button. The microphone's display will light up, showing battery level and channel information.
- Emparellament automàtic: The microphones and receiver are designed to pair automatically. If pairing does not occur, ensure both are powered on and within range.
- Ajustar el volum: Use the volume controls on the microphones and your audio device to set the desired sound level.

Image: The compact wireless receiver, capable of maintaining connection over 30 meters.
Instruccions de funcionament
Ús del micròfon
- Encès/apagat: Press and hold the power button on the microphone to turn it on or off.
- Control de volum: Use the volume buttons on the microphone to adjust the output level directly.
- Selecció de canals: The microphones operate on UHF frequencies. If interference occurs, you may be able to switch channels on the microphone (refer to the microphone's display and controls for specific channel adjustment options).
- Interval: Maintain a distance of up to 30+ meters between the microphone and the receiver for optimal performance. Obstacles like walls can reduce this range.
Ús del receptor
- Càrrega: The receiver is rechargeable via USB-C. A full charge provides extended operation.
- Llums indicadores: Observe the indicator lights on the receiver for power and connection status.

Image: A user demonstrating the microphone's ability to deliver crystal clear sound.
Manteniment
- Neteja: Wipe the microphones and receiver with a soft, dry cloth. Do not use liquid cleaners or solvents.
- Cura de la bateria: For optimal battery life, fully charge the batteries before storage and recharge them every few months if not in regular use. The 18650 Lithium Ion batteries are replaceable.
- Emmagatzematge: Guardeu el sistema en un lloc fresc i sec, allunyat de la llum solar directa i de temperatures extremes.
- Mic Holders: Use the provided anti-rolling sleeves to protect the microphones and prevent them from rolling off surfaces.
Resolució de problemes
| Problema | Causa possible | Solució |
|---|---|---|
| Sense sortida de so | Microphone or receiver not powered on; low battery; incorrect connection; volume too low. | Ensure both microphone and receiver are on and charged. Check all cable connections. Increase volume on microphone and audio device. |
| Interferència/Estàtica | Other wireless devices nearby; out of range; environmental obstacles. | Move closer to the receiver. Try changing the microphone channel if available. Move away from other electronic devices. |
| Durada de la bateria curta | Batteries not fully charged; aging batteries. | Ensure full charge before use. Replace batteries if they no longer hold a charge effectively. |
| Microphone Not Pairing | Microphone or receiver not powered on; out of range. | Ensure both devices are powered on and within close proximity for initial pairing. Restart both devices. |
Especificacions
| Característica | Detall |
|---|---|
| Marca | Dofí |
| Nom del model | MCX21 |
| Tecnologia de connectivitat | UHF |
| Factor de forma del micròfon | Portàtil |
| Nombre de canals | 2 |
| Interval de freqüència | 512.1 MHz - 562.6 MHz |
| Resposta de freqüència | 50 kHz |
| Ràtio senyal / soroll | 70 dB |
| Nivell de soroll | 95 dB |
| Impedància | 4 ohms |
| Font d'alimentació | Battery Powered, Corded Electric (USB-C) |
| Tipus de bateria | Lithium Ion (18650 type) |
| Material | Metall |
| Color | Negre |
| Dimensions de l'article (L x A x A) | 2.1 x 2.1 x 9.81 polzades |
| Pes de l'article | 1.1 lliures |
| Dispositius compatibles | Amplifier, Home Theater, Karaoke Machine, PA System, Speaker |
| Característiques especials | Battery Indicator Light, Mic Holder, Noise Reduction, Volume Control |
Garantia i Suport
For warranty information and technical support, please contact the manufacturer, General Sound Co, or refer to the product's official weblloc web. Conserveu el rebut de compra com a comprovant de compra per a qualsevol reclamació de garantia.
Manufacturer: General Sound Co





