Product Parameters:
Compact and elegant in appearance, this mini wireless adapter features a simple black square design. It is made of plastic and measures approximately 44 x 35 x 7 mm. The device uses a standard 30-pin interface and includes two indicator lights that flash alternately when not connected, while the blue light flashes slowly after pairing. The package includes 1 Bluetooth receiver transmitter.

Core Features:
Supports the Bluetooth 5.1 protocol for wireless audio transmission, playback, and control from a Bluetooth-enabled device at a distance of at least 10 meters. The standard 30-pin line-out port can be directly connected to a pre-bass or pre-audio line input port. By connecting and disconnecting different transmission devices, it enables cable-free audio source switching and reduces repeated plugging and unplugging associated with traditional audio equipment.

Applicable Scenarios:
Suitable for use with analog speakers and compatible docking sound systems that use a standard 30-pin connection. It allows the audio source to be used wirelessly within the room, without needing to be close to the speaker. Compatible with iPhone, Compatible with iPod, and Compatible with iTouch in conjunction with Bluetooth audio use via a 30-pin docking connection. It is not compatible with car stereo systems or digital speakers.

Product Summary:
This black 30-pin Bluetooth 5.1 audio receiver is a compact adapter designed for wireless music transmission to supported analog speaker systems. With its small form factor, simple connection method, and support for cable-free audio switching, it offers a practical solution for 30-pin docking audio playback.