The IR-300M is a hands-free infrared wireless microphone. It eliminates problems with interference or eavesdropping allowing simultaneous use in adjacent conference rooms or school classrooms. Since infrared wireless microphone system uses a frequency band that does not interfere with that of the TS-800 and TS-900 series infrared conference system both systems can be simultaneously installed in the same location.


Battery IR-200BT-2 rechargeable battery for the infrared wireless microphone (option)
or AA alkaline dry cell battery (2 pieces).

Current Consumption
Typ. 250 mA (2.4 V Power selector switch: N)
Typ. 340 mA (2.4 V Power selector switch: H)

Infrared EmitterWavelength 870 nm (AM: Brightness modulation)

Modulation Method Frequency modulation

Carrier Frequency
Channel A: 3.100 MHz
Channel B: 3.350 MHz

Transmission Distance Approx. 20 m (65 ft) (Power selector switch: H in an unobstructed space)

Approx. 15 m (50 ft) (Power selector switch: N in an unobstructed space)

Tone Signal 32.768 kHz

Modulation Sensitivity ±4.8 kHz (1 kHz when SPL of 84 dB is input)

Maximum Input Sound Pressure 120 dB SPL

Input Sensitivity Adjustment Adjustment range: -9 dB to 0 dB (factory preset: 0 dB)

Microphone Unit Unidirectional electret condenser microphone

Frequency Response 100 Hz - 12 kHz

Preemphasis 300 μs

Input External microphone input (φ3.5 monaural mini jack)

Battery Operation Time
Approx. 8 h (when the IR-200BT rechargeable battery for the infrared wireless microphone is used Power selector switch: N)
Approx. 6 h (when the alkaline battery is used Power selector switch: N)

Operating Temperature 0 ℃ to +40 ℃ (32 ゜F to 104 ゜F)

Operating Humidity 30 % to 85 %RH

Finish
Control section: ABS resin metallic gray paint 50% gloss
Filter section: Polycarbonate optical cut filter

Dimensions 64 (W) × 91.3 (H) ×27.3 (D) mm (2.52 × 3.59 × 1.07)

Weight 130 g (0.29 lb) (with battery and strap)

Accessory Screw driver (for setting) …1 Color label (6 colors) …1

Shipping Policy

1. Shipping Rates and Delivery Times
We offer a variety of shipping options to meet your needs. Standard shipping typically takes 5-7 business days, while expedited shipping options are available for faster delivery. Please note that delivery times may vary based on your location and the shipping method selected.

2. Processing Time
All orders are processed within 1-2 business days. Orders placed on weekends or holidays will be processed the following business day.

3. Shipping Carriers
We partner with reputable carriers such as [Carrier Names] to ensure reliable delivery.

4. Tracking Your Order
Once your order has shipped, you will receive a tracking number via email so you can monitor its progress.

5. International Shipping
We offer international shipping to select countries. Please be aware that customs fees and import duties may apply, and these charges are the responsibility of the customer.

6. Lost or Damaged Items
If your order is lost or arrives damaged, please contact us within 7 days of receiving your order. We’ll be happy to assist you with a replacement or a refund.

7. Shipping Restrictions
We do not ship to P.O. Boxes or certain restricted countries. Please check our list of excluded locations at checkout.

8. Shipping Costs
Shipping costs are calculated at checkout based on your location and the shipping method chosen.

9. Free Shipping
Enjoy free standard shipping on orders over $1000.

10. Customs and Import Duties
For international orders, customs duties and taxes may apply. These charges are the responsibility of the customer.

11. Contact Us
If you have any questions or need assistance with your order, please contact our customer service team at Hello@CrystalTech.Group or 03335678444.