Basic knowledge of speaker and hacker

1. Hand Machine Use S P E A K E R , R E C E I V E R Base Ben Zhi Knowledge Lecture Seat 2. Explorer (Radio)

PS: The spk rcv is the voice device of the mobile phone. During Normal calls, the voice of the other party is from the RCV, and the voice of the other party is from the SPK. SPK can generate voice or local music, while RCV can only generate voice from the other party.