What are the classifications of wireless eaphones?
According to the frequency of electromagnetic waves used by wireless headphones, they can be divided into:
Infrared (30um~3mm10GHz~1000GHz) wireless headset
Meter wave (meter wave 10~1m very high frequency (VHF) 30MHz~300MHz) wireless headset
Decimeter wave (decimeter wave 1m~0.1m UHF 300MHz~3000MHz) wireless headset
Infrared wireless headset
Advantages: At present, the technology is quite mature
Disadvantages: 1. The working distance is within 7 meters; 2. The diffraction is poor. If there are obvious obstacles (such as people, large pets) between the infrared wireless headset and the transmitter, the infrared headset may be interrupted. .
Meepo wireless earphones (“FM FM earphones”)
Advantages: 1. Theoretically, N receivers within the working range can listen at the same time, a one-to-many wireless audio broadcasting system; 2. The signal has strong diffractive properties; 3. The operating distance is nominally 10 meters to 70 meters between.
Disadvantages: 1. Virtual standard working distance; 2. Large noise interference; 3. Unstable signal reception.
Decimeter wave wireless headset (Bluetooth)
Advantages: 1. Working distance (100 meters), more free working space; 2. Good music playback effect; 3. Stronger communication confidentiality; 4. Better sound quality; 5. More energy-saving; 6. Lower cost.