ราคาพิเศษ สอบถามโทร 080-6144774 ,02-9810944

SHURE MX690 ไมโครโฟนไร้สายแบบ วางโต๊ะ, Microflex Wireless Boundary Microphone

The Microflex® Wireless Boundary Microphone offers total freedom of placement with no holes to drill or cables to run for installation. The Wireless Boundary Microphone is the perfect solution for conference and meeting spaces where users demand flexibility and high performance. Compatible with Shure SLX® wireless systems.

Features

Sleek, low profile design

Frequency agile, microprocessor controlled transmitter

Bi-color status indicator

IR link to SLX receiver for automatic frequency synchronization

Programmable mute function

Battery level indicator

Operates on two AA batteries

Logic output for remote LED and mute control

CommShield Technology for improved RF filtering

Transmitter Specifications

Operating Range

30 m (100 ft.)

Note: Actual range depends on RF signal absorption, reflection, and interference

Frequency Stability ±10 ppm

Maximum Frequency Deviation 45 kHz

Oscillator Type Phase-locked loop (PLL) controlled synthesizer

Power Requirements 3V (2 AA alkaline or rechargeable batteries)

Battery Life ≥8 hours (alkaline)

Power Consumption 130 mA, ±15 mA

Operating Temperature Range -18–57 °C (0–135 °F)

Note: Battery may limit this range

Dimensions 43 mmH x 87 mmW x 148 mmD (1 11/16 x 3 3/8 x 5 13/16 in.)

Weight

Net: 318 g (11.2 oz)

Packaged: 516 g (18.2 oz)

Microphone Specifications

Type

Condenser (electret bias)

Frequency Response 50–17000 Hz

Polar Pattern (at 1 kHz)

Cardioid

Sensitivity (at 1 kHz , open circuit voltage)

–33 dBV/Pa (22 mV)

1 Pascal=94 dB SPL

Dynamic Range (1 kΩ load at 1 kHz)

96 dB

Common Mode Rejection (10 Hz to 100 kHz)

45 dB minimum

Preamplifier Output Clipping Level (1% THD)

–6 dBV (0.5 V)

Polarity

Positive sound pressure on diaphragm produces positive

voltage on pin 2 relative to pin 3 of output XLR connector or tip

of 1/4” phone plug