Bose A30 ANR Aviation Headset LEMO 6 Pin Aircraft Power with Bluetooth 857641-3140

Does this LEMO 6 pin A30 run on aircraft power, batteries, or both?

This 857641-3140 model uses a 6 pin LEMO connector built to draw power directly from an aircraft panel wired for it. The A30 design also accepts two AA batteries for added flexibility, and that battery option supports the bypass mode for power free operation. Confirm your panel has a matching 6 pin LEMO jack before choosing this version.

What is the difference between the LEMO 6 pin A30 and the dual plug version?

They differ in how they connect to your aircraft. This model uses a single 6 pin LEMO connector that mates with a panel wired for LEMO power. The dual plug version instead uses two general aviation plugs that fit the twin jacks found in most piston aircraft. Pick LEMO when your panel is wired for it, otherwise choose dual plug.

How long does the Bose A30 battery last?

The A30 runs on two AA batteries. Bose rates it for about 45 hours of typical use, and over 25 hours when you run Bluetooth continuously for music, calls, or other external audio. An automatic shutoff helps conserve power if the headset is left on, which is handy for instructors and frequent flyers who would rather not think about batteries.

What happens if power is lost during a flight?

You stay connected. The A30 includes a bypass mode for power free operation, so it keeps working as a passive headset even without active power. You lose active noise reduction and Bluetooth, but you can still transmit and receive with ATC and your intercom. This built in fallback gives you peace of mind on every leg of the flight.

What are the three noise reduction modes, and how does the A30 compare to the A20?

The A30 offers three user selectable active noise reduction modes, so you can dial in more cancellation in loud piston cockpits or less for natural conversation on the flight deck. Compared with the earlier A20, it adds these selectable modes and reduces clamping force by about 20 percent for greater comfort, while keeping the Bose audio clarity pilots expect.

How does Bluetooth work on the A30, and can I listen to music?

The A30 includes Bluetooth so you can wirelessly link an electronic flight bag, phone, tablet, or audio system and stream music, calls, and other audio. It balances that connected audio with your aircraft intercom, so external audio sits alongside live radio and intercom communication. This lets you enjoy entertainment while still hearing important calls in the cockpit.

Does the A30 microphone work with hot mic and Push to Talk systems?

Yes. The noise canceling microphone is engineered to work with both always on, sometimes called hot mic, and Push to Talk intercom systems. It reduces background noise during transmission so your voice reaches ATC and passengers clearly. This makes the A30 a flexible choice across different aircraft and intercom setups you may encounter.

Can the boom microphone be switched to the other side?

Yes. The removable boom and cable can be mounted on either the left or right side, and they swap without tools. This lets you set the microphone on whichever side suits your seat position or cockpit layout. It is a practical touch for pilots who fly different aircraft or share a headset across seats.

How much does the Bose A30 weigh and is it comfortable for long days?

The A30 weighs about 14.2 ounces, and Bose distributes that weight evenly across the headband and ear cups. It pairs that with 20 percent less clamping force than the A20, so the headset is designed to stay comfortable through long days. The result helps reduce fatigue on extended commercial routes or full days of instruction.

Is the Bose A30 certified, and how is it backed?

Yes. The A30 is TSO certified, FAA TSO and EASA E/TSO-C139a certified for dependable use in demanding environments. It is backed by a five year warranty from Bose, so you can fly with confidence over many hours in the cockpit. That combination of certification and support makes it a dependable long term choice.