Microphone E3 KR-777

The E3 KR-777 wireless microphone is a 2-channel UHF microphone system designed for karaoke, conferences, and professional stage performances.

The device utilizes phase-locked PLL technology, supports two microphones operating simultaneously, has a transmission and reception range of up to 150 meters, delivers stable sound quality, effective interference resistance, and reliable performance in various environments.

Introducing the Micro E3 KR-777

The E3 KR-777 is a wireless microphone system that uses the UHF 610–920MHz frequency band, which reduces interference and ensures a stable signal even in environments with many wireless devices.

In addition, a signal-to-noise ratio (S/N) greater than 105dB, harmonic distortion below 0,7%, and a frequency response range of 45Hz – 18kHz help to reproduce clear, accurate, and detailed sound.

Technical parameters of the product to consider:

• The UHF band (610–920MHz) provides a stable connection. The E3 KR-777 operates on the UHF frequency band of 610–920MHz, which helps reduce interference, increase signal stability, and minimize interference from other wireless devices in the same area.
• PLL technology precisely locks the frequency: The system uses a PLL (Phase Locked Loop) to synthesize frequencies, ensuring stable signals, reducing frequency drift, and guaranteeing continuous connectivity throughout use.
• The 2-channel receiver meets the needs of simultaneous use: The receiver is equipped with two independent channels, allowing two microphones to operate simultaneously while maintaining stable signal quality, making it suitable for karaoke duets, conferences, and performances.
• Clear sound quality: With a signal-to-noise ratio (S/N) above 105dB, THD below 0,7%, and a frequency range of 45Hz – 18kHz, the E3 KR-777 delivers natural vocal and speech reproduction, minimizing distortion and effectively reducing background noise.
• Operating range up to 150 meters: An operating range of 150 meters allows users to move freely on stage, in the auditorium, or in the event area while still ensuring a stable signal.
• Flexible connectivity: The receiver is equipped with balanced XLR and 6.3mm jacks, making it easy to connect to digital processors, mixers, karaoke amplifiers, power amplifiers, and many professional sound systems.
• Battery life: 12 hours The two microphones use 2 AA batteries and have a continuous operating time of approximately 12 hours, making them suitable for performances, conferences, or extended events.

Key features of the Micro E3 KR-777

The Micro E3 KR-777 is designed to deliver stable performance and a professional user experience. Here are some of the outstanding features of this microphone from the E3 brand:

• The system features two wireless microphones, ideal for duets and simultaneous use.
• With an operating range of up to 150 meters, it's suitable for a variety of medium to large spaces.
• Advanced PLL technology ensures stable signals and minimizes frequency drift.
• Clear sound, good noise reduction, suitable for karaoke, conferences, and performances.
• Dynamic microphone head, reproduces vocals faithfully and minimizes feedback.
• Versatile connectivity with XLR and 6.3mm jack outputs, making it easy to pair with a variety of audio devices.
• With a battery life of up to 12 hours, it meets the needs of continuous use.
• Widely used for home karaoke, commercial karaoke rooms, auditoriums, restaurants, hotels, schools, stages, and professional event organizers.

Detailed review of the Micro E3 KR-777

Robust design, suitable for a variety of environments.

The Micro E3 KR-777 is designed in a modern style with a compact receiver and two high-quality microphones, providing a secure and comfortable grip.

This device is suitable for various spaces such as home karaoke, commercial karaoke rooms, auditoriums, restaurants, hotels, and performance stages. Its durable design also ensures the microphone operates reliably under frequent use.

Stable connection with UHF and PLL technology.

The E3 KR-777 uses the UHF 610–920MHz frequency band combined with PLL (Phase Locked Loop) technology to precisely lock the frequency, reducing frequency drift and minimizing interference.

With an effective operating range of up to 150 meters, the device allows users to move freely on stage or in the auditorium while maintaining stable signal quality.

Clear sound, realistic vocal reproduction.

Equipped with a dynamic microphone head, a signal-to-noise ratio (S/N) greater than 105dB, total harmonic distortion (THD) below 0,7%, and a frequency response range of 45Hz – 18kHz, the E3 KR-777 delivers clear, balanced sound and effectively minimizes background noise.

This device helps to make the vocals sound fuller, brighter, and more natural, while also supporting users in singing effortlessly and reducing feedback when combined with a properly tuned sound system.

Easily integrates with various audio systems.

The Micro E3 KR-777 is equipped with balanced XLR and 6.3mm jack outputs, allowing for quick connection to digital processors, mixers, karaoke amplifiers, power amplifiers, and other audio processing equipment.

Thanks to its high compatibility, the product is suitable for both new audio systems and systems needing upgrades without requiring significant changes to existing equipment.

Applications of the Micro E3 KR-777

The E3 KR-777 wireless microphone is designed to meet a wide range of needs, from entertainment to professional audio. With its independent 2-channel receiver system, UHF technology combined with PLL, and an operating range of up to 150 meters, the device provides stable transmission and reception in various environments.

• Family karaoke.
• Karaoke room business.
• Auditorium and conference room.
• Performance stage.
• Restaurants, hotels, and wedding venues.
• Schools and training centers.
• Churches, temples, and community centers.
• Event organizer and sound equipment rental company.

Where can I buy a genuine and reliable Micro E3 KR-777?

If you are looking to buy a genuine E3 KR-777 wireless microphone, Phuc Truong Audio is a reputable address trusted by many customers and audio businesses. With many years of experience in the audio equipment field, Phuc Truong Audio provides a wide range of wireless microphones, digital processors, mixers, karaoke speakers, power amplifiers, and professional audio solutions for homes, commercial karaoke rooms, auditoriums, and stages.

When purchasing the Micro E3 KR-777 at Phuc Truong Audio, customers are guaranteed 100% genuine products with complete warranty labels and clear origin information. Our experienced technical team will advise on selecting the right equipment to suit your needs, assisting with pairing with digital processors, mixers, amplifiers, and speaker systems for optimal sound performance. Before delivery, the product is also inspected, configured, and frequency-checked to ensure stable operation from the first use.

Besides competitive pricing, Phuc Truong Audio also offers a transparent warranty policy, dedicated technical support, and long-term after-sales service. This is a reliable place to purchase genuine E3 KR-777 microphones, giving you peace of mind regarding product quality and long-term effectiveness.

Frequently Asked Questions about Micro E3 KR-777

1. What types of spaces are the E3 KR-777 karaoke microphone suitable for?

The E3 KR-777 is suitable for home karaoke systems , commercial karaoke rooms, auditoriums, restaurants, hotels, wedding venues, performance stages, and medium-sized events thanks to its stable transmission and reception capabilities and wide operating range.

2. Can the Micro E3 KR-777 be used with two microphones simultaneously?

Yes. The system is equipped with two independent receiving channels, allowing two karaoke microphones to operate simultaneously without affecting signal quality, making it ideal for duets or hosting events.

3. Does the operating range of the E3 KR-777 meet the requirements for a large stage?

With an effective operating range of up to 150 meters under ideal conditions, the E3 KR-777 is well-suited for use in stage sound systems , auditoriums, conference centers, and many other large spaces.

4. Is the Micro E3 KR-777 compatible with popular digital sound processors and mixers?

Yes. The device uses balanced XLR outputs and 6.3mm jacks, compatible with most digital processors , mixers, karaoke amplifiers, and power amplifiers currently available.