1. Signal amplifier is a mini repeater, also called mobile phone signal amplifier, also called mobile phone companion.
2. From its name, we know that the function of signal amplifier is to amplify signals.
3. There are many types of signal amplifiers, such as TV signal amplifiers, radio amplifiers, etc. All receivers have signal amplifiers.
4. The amplifier specially used to amplify mobile phone signals is called mobile phone signal amplifier, which is mainly used to solve the problem of indoor mobile phone signal blind zone.