OKAYO GPA-300WU+EJ-501TM เครื่องขยายเสียงไร้สายแบบพกพา พร้อมไมโครโฟนชนิดมือถือ 10W Mini Portable Sound System (16 Channel) Wireless Microphone
EJ-501TM
UHF 16~96-ch handheld microphone
UHF band 520-865MHz.
16/96 channels available (depending on frequency band).
Talk/Mute button.
Hi/Low power switch.
Built-in condenser mike.
LCD display.
Battery meter.
Aux/Mic input.
Specifications
Mike : Condenser capsule
Frequency range : 520 ~ 865 MHz (country dependent)
Adjustable channels : 16 or 96 channels, by frequency range
Antenna : built-in
RF output : 10 mW
AF controls : Talk / Mute button
Battery : 2 AA 1.2 V (Ni-MH. 1600 mAh), 2 AA 1.5V (Alkaline)
Battery life Ni-MH. rechargeable : 13 hours typical
Battery life Alkaline disposable : 20 hours typical
Dimension (Dia x L) : 37 x200 (mm)
Weight : 140 g (with batteries)
GPA-300WU
A portable wireless sound system with built-in speaker/amplifier, ideally to be used in small groups, classroom presentations and stadium.
OKAYO Mini Portable Sound System, GPA-300WU is developed to provide pleasures and conveniences. This multi-purpose personal wireless
amplifier is compact and easy to be carried anywhere. Its capability to connect with projector, laptop or computer also makes GPA-300WU
more versatile than other personal amplifier system.
* UHF band 740 – 865 MHz, PLL synthesized, with preprogrammed 16 selectable frequencies helps users to choose non- interference channel.
* Streamlined & visually exciting design, compact and easy to be worn on a belt.
* LED indicator for RF, Battery and charging.
* AUX In/Out for versatile purposes.
* 3.5 mm jack for additional wired microphone. Condenser switch on/off offers better performance in speech.
* Two power consumption available. DC input or 6 pcs AA type batteries.
* “Tone key” control to eliminate external interference.
* High-fidelity and high-efficiency circuit design with a 4” woofer leads to clear and powerful vocal reproduction. 10W power output maximum.
Specifications
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Key Specifications / Overall System:
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Oscillation type
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：PLL synthesized control OSC
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Carrier frequency range
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：group 1. 740 ~ 752 MHz (96 ch.)
：group 2. 794 ~ 806 MHz (96 ch.)
：group 3. 863 ~ 865 MHz (16 ch.)
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Adjustable frequencies
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：pre-programmed 16 selectable channels
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Switching bandwidth
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：max. 12 MHz
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Ambient temperature
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：-10 °C ~ 50 °C
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Maximum deviation
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：50 kHz, with level limiting
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Dynamic range
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：> 80 dB
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T.H.D.
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：less than 1 %
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Pre/De- emphasis
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：50 μs
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Squelch
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：tone key and noise lock dual-squelch
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AF Frequency response
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：100 Hz ~ 12 kHz
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Operating range
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：30 ~ 40 M (opening field)
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GPA-300WU Wireless Portable Amplifier Speaker
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Sensitivity
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：12 μV @ 30dB SINAD
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RF spurious rejection
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：60 dB
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Adjacent channel performance
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：50 dB @ 250 kHz
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IMD rejection
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：50 dB
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Double intermediate
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：110.6 MHz / 10.7 MHz
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Antenna
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：Built-in loop antenna
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Output power
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：Max. 10 W @ 4 ohm
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Signal to noise ratio
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：up 70 dB
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nput
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：MIC with 3.5ψphone jack, and condenser switch
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Input / Output
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：AUX with 3.5ψphone jack
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Controls volume
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：wireless/MIC, TONE
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Power requirements
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：AC adaptor 12V DC, 1A
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Battery
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：1.2 V (Ni-MH. 1300 mAH) x 6 AA type rechargeable battery
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Operating life
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：2 ~ 4 Hours
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Charging time
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：3 ~ 4 Hours
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Charging control
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：PWM control, –ΔV and timer power-off detector, temperature detector
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Dimensions
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：D 53 x W 130 x H 176 mm
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Weight
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：0.62 kg
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