- Contact Person : Ms. li Shirely
- Company Name : Zhuhai Jingfeng Electronic Technology Co., Ltd.
- Tel : 86-756-8630650
- Fax : 86-756-8630550
- Address : Guangdong,Zhuhai,6th floor ,38# apartment first industy zone,Lixi,
- Country/Region : China
2.4G wireless transmitting and receiveing for teaching hotsale!!!
Quick Details
Specifications | Audio transmission | Audio receiving |
supply voltage | 3.3-3.5V | 3.3-3.5V |
Consumption current | <15mA | <40mA |
Working temperature | 0 —+70° | 0 —+70° |
Frequency range | 2400-2483.5MHz | 2400-2483.5MHz |
Channel number | 20 | 20 |
Modulation mode | GFSK | GFSK |
transmitting power | 4dBM | |
input impedance | 10K 0hm | |
input level | 2.8Vp-p(Max) | |
Receiving sensitivity | -85dBm(Min.) | |
Output impedance | 32 Ohm | |
Output level | 2Vp-p(Max) | |
Audio delay | <7ms | |
Frequency response | 100~4KHz,±3dB | |
Dynamic range @ 1 KHZ | 81dB | |
Separating degree @ 1 KHZ | 90dB | |
Distortion THD | 0.1% | |
Packaging & Delivery
Packaging Details: Leather bag
Delivery Details: 2 weeks leadtime when order confirmed
Product characteristics
2.4 G wireless public address system is teaching product which has small volume, easy operation, low power consumption, anti-jamming and environmental protecting.
A)-------Transmitting plus receiving just 35g, Clean sanitation and convenient to carry
B)-------ISM24GHz free frequency band, preset channel
C)-------Each system has a unique address code, no harass
D)-------Transmission distance on the field more than 50 meters
E)-------Charging two hours cell can use 6 to 8 hours
F)-------Emission no signal can be automatically shut down
Product design diagram
Instructions for connection diagram
A)-----According to above picture after connect,Receiver indicate light flashing.
B)----Near to receiver 3 meters inside, Press Emitter switch 3 seconds. Red and blue light fast flashing.
After Frequency channel connection blue light slow flashing, receiving also slow flashing, finishing and can be using.
C)----When electricity shortage, transmit's red light slow flashing.
Please recharge.when full of charged red light lighted.
Guaranty:
1-Year Warranty from the date of package receipt.
1)Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer’s responsibility.
2)Please check with your country’s customs office to determine what these additional costs will be prior to bidding/buying.
2.4G wireless transmitting and receiveing for teaching hotsale!!!