SM-100Z One-to-one wireless microphone

SM-100Z One-to-one wireless microphone

Stable Transmission + Strong Anti-Interference: Dual-band infrared + UHF technology, paired with continuous IR auto-tuning and SCAN frequency scanning to lock clean frequencies, completely avoiding frequency interference and dropouts. Fully digital transmission + DSP signal processing delivers a 30~20KHz wide frequency response with zero latency. 4-level digital anti-feedback + 7-band equalizer effectively suppress interference and feedback, ensuring clear and transparent audio pickup.

Smart & Convenient + Easy Management: Auto-pairing upon startup, compatible with same-brand receivers for multi-classroom use. Built-in gyroscope chip enables standby mode when stationary, wake-up upon pickup, and auto-shutdown after prolonged inactivity for “set-and-forget” operation. OLED HD display clearly shows system status with customizable interface and button functions for intuitive control.

Multi-Functional + High Compatibility: Integrates microphone, laser pointer, and wireless PPT control for comprehensive teaching needs. Features a built-in condenser electret capsule for extended, clear pickup range. Supports 3.5mm external headset/lapel mics for expanded functionality. Anti-pop and wind noise design eliminates plosives, delivering natural, pure audio.

Flexible Charging + Durable & Hassle-Free: Supports direct charging via Type-C or optional docking station. Reversible charging with three-contact design at the base eliminates orientation concerns. Individual microphones ensure hygiene. High/low power switching adapts to diverse teaching environments. Simple maintenance and worry-free operation.

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Key Features:

1. Dual-band infrared and UHF wireless radio frequency technology ensures stable and reliable performance, preventing frequency interference and dropouts;

2. Built-in high/low power switching comprehensively addresses challenges faced by wireless teaching microphones, including interference susceptibility, frequent frequency conflicts, poor audio quality, bulky design, maintenance hassles, and management difficulties;

3. Features a built-in pickup sensor with a condenser electret microphone capsule for clear, long-range audio capture. Includes a 3.5mm external microphone jack for connecting headset or lapel mics, or transmitting other audio files;

4. Auto-pairs upon power-up with compatible receivers of the same brand. Portable microphones can be used in any classroom, enabling one microphone per person for hygienic and easy management;

5. Built-in gyroscope chip automatically enters sleep mode when stationary for short periods, activating instantly upon pickup without additional button presses. Long-term inactivity triggers automatic shutdown for hands-free operation;

6. Charging options: Supports both Type-C charging and optional dock charging. The rear features a three-point charging contact, enabling charging from either orientation without reversal concerns;

7. Fully digital transmission with DSP signal processing and intelligent management. Automatically detects the operating environment upon startup and selects the optimal working mode;

8. Professional-grade microphone sound quality with a wide frequency response of 30Hz to 20kHz, delivering zero latency;

9. Integrates microphone, laser pointer, and wireless PPT page-turning functions with customizable button assignments;

10. OLED display clearly shows system status and parameters with customizable interface;

11. DSP digital feedback suppression with 4 adjustable levels and 7-band microphone equalizer effectively suppresses feedback while maintaining pickup distance;

12. New structural and functional design prevents plosives and wind noise, delivering transparent, natural sound with no harshness;

13. Continuous IR auto-frequency pairing with automatic SCAN frequency search selects the cleanest local frequency;

14. Features infrared frequency auto-sync locking with transmitter frequency ACT function;

15. LCD display window shows channel, frequency, RF signal strength, and AF audio output level.

 

Pen Microphone Technical Specifications:

Carrier Frequency Range: 530-590MHz; 630-690MHz; 840-890MHz

Modulation Type: FM

Bandwidth: 25MHz

Frequency Spacing: 250KHz

Dynamic Range: >150dB

Carrier Error: ±5PPm ≤10KHz

RF Output Power: 30mW

Power Supply: 2000mA 18500 Lithium Battery

Dimensions: 22*22*172mm

 

Receiver Technical Specifications:

Receiving Range: Approximately 60M (first dropout)

Total Channels: 220CH

Frequency Response: 50Hz-18kHz

Sensitivity: -105dBm (12dBS/NAD)

Output Impedance: 2200Ω

Signal-to-Noise Ratio: >100dB (1kHz-A)

Bandwidth: 25MHz

Carrier Frequency Range: 530-590MHz; 630-690MHz; 840-890MHz

Antenna: 1 antenna.

Features: Independent module control, electronic power meter, digital pilot tone.

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