The chips include Bluetooth audio receiving chip and A/V receiving chip.

1. Bluetooth audio receiving chips: These chips are specially used to receive audio signals sent through Bluetooth technology. They can connect to Bluetooth-enabled devices such as smartphones, tablets, or audio receivers to receive and play streaming music.

2. A/V receiving chips: These chips are used in audio and video receivers or home theater systems and support various audio and video interfaces, such as HDMI, optical fiber, coaxial, etc.