The Sony ECM-AW4 is a wireless microphone system designed for recording clear audio during video shooting using camcorders, DSLR cameras, voice recorders, and other devices equipped with a standard 3.5mm microphone input. The system uses Bluetooth technology.
Key Features and Specifications (English):
Wireless Transmission: Ensures audio transmission between the microphone (transmitter) and the receiver over a distance of up to 50 meters (in line of sight conditions).
Two-Way Communication (Talkback): A unique feature that allows the camera operator and the subject to communicate with each other using the included earphones. This is useful for directing interviews or coordinating actions remotely.
Versatile Connectivity: The receiver connects to the camera's audio input via a standard 3.5mm mini-jack connector.
Built-in Microphone: The transmitter features a built-in omnidirectional monaural electret condenser microphone.
External Lav Mic Option: For better sound quality or concealed use, an external lavalier microphone can be connected via the 3.5mm input on the transmitter.
Power Supply: Both the transmitter and receiver units are powered by a single AAA battery (alkaline or Ni-MH).
Compact and Lightweight: The devices have small dimensions and low weight (approx. 19g each), ensuring portability and ease of use during shooting.