Looking for a versatile and reliable voice amplification solution for your team or organization? Discover the OPM-655S+, a top-tier smart megaphone developed by trusted microphone manufacturers with decades of industry expertise. This optimized voice amplifier is designed to meet the demands of public events, outdoor instruction, crowd control, and promotional use. The OPM-655S+ features powerful voice amplification with a patented close-range microphone design that ensures consistent and clear audio even while walking. Its built-in 60-second voice recorder allows for looped playback—ideal for repetitive messaging in promotional campaigns or emergency situations. The device also supports MP3 playback via USB, and 3.5mm Line-in input, enabling seamless connection with smartphones, tablets, or other audio sources. One of the key advantages is its multi-input mixing capability, allowing users to combine microphone, USB, and Line-in sources for dynamic, real-time communication. Whether you need to speak over background music or make announcements during a live event, the OPM-655S+ delivers professional-grade sound flexibility. For added versatility, the megaphone supports low-latency Bluetooth audio input when paired with the BTM-210R receiver, making it fully compatible with both iOS and Android devices. Its modular design ensures that features can be upgraded or customized as needed, giving buyers long-term value and adaptability. With user-friendly controls—including volume adjustment, MP3 track navigation, and LED indicators for recording and playback status—the OPM-655S+ is built for quick deployment and intuitive use. An integrated siren function is also included, making it perfect for safety drills and emergency crowd management. If you're sourcing cutting-edge megaphone solutions from professional Microphone Manufacturers, the OPM-655S+ stands out as a top pick. Choose a communication tool that combines functionality, durability, and innovation for your next project or public event. 1. Detachable module to upgrade megaphone functions 2. 80 seconds voice recording: High-quality and clear recording, which can be played in a loop 3. Play MP3 files via USB and line-in 4. Multi-functional with volume control: Multiple signal input from USB, line-in, microphone and can be mixed and play 5. PA systems extend your range: From bustling crowds to muted settings, CAROL has a PA system for every environment. A sound investment that will stand the test of time, these versatile systems offer superior quality and well-rounded performance. 6. Able to work with 3C products and smartphone by using BTH-830R low-latency Bluetooth Audio Pixix via line-in 7. Applicable scenarios including lifeguard, procession, market, sport event, etc.
FAQ | |
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1. What makes the OPM-655S+ different from regular megaphones ? | |
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2. Can I use multiple audio sources at the same time, such as a mic and background music ? | |
Yes. The OPM-655S+ supports simultaneous input from USB, Line-in, and microphone sources, allowing real-time audio mixing. With the optional BTM-210R Bluetooth receiver, it can also play wireless audio from iOS or Android devices—perfect for blending speech with background music during live events or mobile presentations. | |
3. Is the sound still clear while walking or speaking outdoors ? | |
Absolutely. Designed by professional Microphone Manufacturers, the OPM-655S+ uses a patented close-range microphone that maintains loud, clear audio even while walking or speaking in noisy environments. For best results, keep the mic within 0–0.5 cm of your mouth to ensure consistent sound quality during movement. |
The OPM-655S+ is a next-generation smart amplifier microphone designed for clear voice projection in dynamic environments such as public events, outdoor instruction, and crowd management. Developed by trusted microphone manufacturers, it features 60-second voice recording with looped playback, MP3 file support via USB, and 3.5mm Line-in for versatile amplifier microphone input. Its modular design allows users to upgrade functionality with low-latency Bluetooth connectivity, while its patented close-range microphone ensures consistent clarity even while walking.
Backed by nearly 50 years of innovation, Carol transforms technical precision into emotionally rich audio experiences. Since 1975, we’ve combined research with human-centered design to create communication tools that move people. Our commitment to bringing science to life has made us a global leader in sound solutions.
Discover how the OPM-655S+ can elevate your voice and your brand—contact us today for pricing and OEM opportunities.
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