There are five wireless headset technologies on the market today, namely infrared, 27MHz radio, Bluetooth, FM and 2.4GHz digital high-speed RF technology. It can be seen that 2.4G wireless technology has the most mature market conditions in terms of comprehensive capability assessment. You can listen to FM radio in a tidy car, on a leisurely bicycle, along with cheerful steps. In this highly competitive and colorful world, you can receive messages from all parties at all times. Listen to music and relax. You can watch great TV shows in the night when you are quiet, without affecting "love you and the people you love." You can get rid of the shackles of the cable. If you need to walk away from the glass of water, don't worry, it doesn't matter. In the gap you walk away, you can listen to clear dialogues and beautiful melodies. Because the sound signal of this earphone can penetrate walls, objects and other substances, there is no angle limit. Wireless headsets have long been related products. The maturity of 2.4G technology has also promoted product development. However, due to the lack of wireless microphones, people can only use wired microphones to cooperate with wireless "listening". The portability alone cannot reflect the advantages of wireless headphones. Although there are many popular technologies such as infrared, Bluetooth, and 27MHz RF for wireless signal transmission, it seems that the most stable, reliable, and practical is 2.4GHz. Why is 2.4GHz audio technology a fragrant? In wireless audio technology, many wireless headset products on the market have 2.4GHz wireless technology as a selling point, which is also a transformation branch of digital peripherals. 2.4GHz refers to a working frequency band. 2.4GHz ISM (Industry Science Medicine) is a wireless frequency band widely used in the world. Bluetooth technology works in this frequency band, and it can work in the 2.4GHz frequency band to obtain a larger use range. And stronger anti-interference ability. And popularly speaking, 2.4GHz wireless technology requires very low power consumption, and is not as expensive as Bluetooth, which can effectively reduce production costs. Bluetooth is typically priced at more than $5 due to the expense of microprocessor and protocol licenses required. In fact, 2.4GHz as an international common frequency band, the application technology derived from it is quite rich. In addition to the so-called 2.4G applications, our commonly used WiFi and Bluetooth technologies also work within the 2.4Ghz frequency range, but the protocols for each work are different. Compared to the huge standard protocol system of WiFi and Bluetooth, 2.4G works and data packages are more concise and easy to use. In fact, through the application of frequency-pairing and auto-tuning technologies, the confidentiality and anti-interference of 2.4G applications are no worse than those based on Bluetooth protocols.
Function description
The
socket is ordinary converter,with two output 5V2A power USB power
supply at the same time,can be very convenient in use electrical
appliances and recharge the equipment at the same time,such as digital
products like Iphone Ipad,MP3,MP4 etc.The charge apply to full range of
international AC output,no-load power consumption less than 0.3W,with
short circuit,overload,over-voltage protection,can be convenient for
your life and save more energy
Timer Control Time Adgustment
1.Press the power switch 1 time,the 1HOUR LED will light on.The Timer into ON mode,USB and control socket output ON .
2.Continuously
press the power switch the LED light on,the Countdown mode and LED
light on will cycle change from 1HR,2HR,4HR,6HR,8HR,10HR.
3.Choose
you need countdown time mode,the mode LED will lighto on,start
countdown until countdown time finish,the control output and USB change
to OFF
4.Then the countdown is start,The Time indicate LED will from high to low auto change until Countdown finish off.
Failure analysis:
1.check whether the power supply connection is good
2.check whether the USB cable is loosen
Warning Note:
1.Use indoor and dry location ONLY
2.The load max does not exceed 15A 3600W
3.This product does not convert voltage please do not miss use DO NOT exceed the maximum loading of 3600 Watts 15A
4.Always have earth connection for safety reason
5.If in doubt please consult with a qualified electrician
USB Countdown Timer, USB Countdown Timer Socket, USB Timer, USB Charger Timer, USB Timer Socket NINGBO COWELL ELECTRONICS & TECHNOLOGY CO., LTD , https://www.cowellsockets.com