Microphone with integrated audio, Conference microphone
Number of speakers
1 pc
AI Features
Not supported
Speaker Power
Above 25W
Receiver RX screen
Display Screen
How to Wear
Head-mounted
Receiver RX interface
Type-C
Packaging Form
Single product
Item
Detail
Soundbase N21
20 hours
Soundbase N23
10 hours
5. Battery Capacity
Item
Detail
Soundbase N21
5000mAh
Soundbase N23
2600mAh
6. Feedback Suppression
Both models: DSP feedback suppression technology
7. Transmission Distance
Both models: 50 meters
8. Coverage Area
Item
Detail
Indoor
300 m²
Outdoor
200 m²
9. Weight
Item
Detail
Soundbase N21
Microphone 11 g, Amplifier 255 g
Soundbase N23
Amplifier 190 g
10. Charging Time
Item
Detail
Soundbase N21
Wireless microphone 1.5 hours, Amplifier 3 hours
Soundbase N23
Amplifier 3 hours
11. Simultaneous Playback and Amplification
Both models: Supported
12. Amplification Modes
Soundbase N21: Wired amplification mode
Soundbase N23: Wired amplification mode / Bluetooth mode
13. Functional Modes
Soundbase N21: Bluetooth mode / USB mode / Recording mode
Soundbase N23: MP3 mode / Recording mode / AUX mode
Powerful 26W internal magnetic speaker delivering clear, distortion-free sound with strong volume.
Coverage up to 300m² indoors and 200m² outdoors for clear amplification.
DSP professional anti-feedback technology ensures stable and clear sound.
2600mAh large capacity battery supports up to 10 hours of continuous use (approx. 13 lessons of 45 minutes each).
Five professional sound effect modes with one-button switching to adapt to various scenarios.
Supports simultaneous voice amplification and background music playback via Bluetooth or TF card.
AUX mode allows use as a small speaker by connecting a 3.5mm audio cable.
Lightweight and portable design (190g) with included shoulder strap for easy carrying.
Suitable for multiple scenarios including classroom teaching, meetings, promotions, outdoor activities, and more.
Additional details
Wireless frequency range
2400-2480 MHz
Wireless modulation
GFSK
Peak output power
approx. 26W
Audio frequency range
50Hz-20kHz
Audio latency
≤20ms
Wireless transmission power
≤10dBm
Signal-to-noise ratio
≥80dB
Built-in battery
2500mAh (amplifier)
Charging input
DC 5V/1A
Automatic power off after 15 minutes of no connection
Additional details
Operating temperature
0°C to 55°C
Storage temperature
-20°C to 55°C
Dimensions (amplifier)
120 mm (L) x 78 mm (W) x 39.5 mm (H)
Monster RX Amplifier x1
Wired Microphone x1
Amplifier Shoulder Strap x1
USB-C to USB-A Cable x1
Storage Bag x1
User Manual x1
Charging Cable x1
All specifications and data are based on Monster laboratory tests and may vary depending on environment and individual product differences. Actual product performance and specifications should be considered final.
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