Bose A30 Aviation ANR Headset U-174 Helicopter Plug Without Bluetooth Straight Cable

The Bose A30 aviation headset combines around-ear active noise reduction with a U-174 single-plug helicopter configuration. This version is supplied with a straight cable and a standard non-Bluetooth control module, providing a focused communications solution for aircraft equipped with a U-174 headset connection.

Bose designs the A30 for long-duration wear, with a lightweight around-ear format, reduced clamping force, active equalisation for clear communications, and three selectable active noise-reduction modes. The boom microphone and down cable can be positioned on either side without tools.

• Manufacturer part number: 857641-2130
• U-174 single-plug configuration
• Straight cable with non-Bluetooth control module
• Battery-powered operation using two AA batteries
• Active noise reduction with selectable modes
• Mono-only U-174 audio configuration
• Tool-free left- or right-side microphone placement

Please verify the aircraft headset connection and required audio configuration before purchase. Bose states that A30 units approved to FAA TSO and EASA E/TSO-C139a are marked accordingly.

Documentation: Bose A30 Aviation Headset Operating Guide