bluetooth ANR aviator helmet UFQ BT AHA28 pilot aviation helicopter vs bose a20,compare to BOSE A20 aviation headset with bluetooth vs David Clark pilot headset Bluetooth 5.0 allows you to connect to two devices at the same time EN966 certified Made from high-quality materials Fiberglass outer shell EPS inner shell Velvet liner Available in White or Black Size options:S,M,L,XL,XXL Size S M L XL XXL Head Circumference[cm] 55-56 57-58 59-60 61-62 63 Head Circumference[inches] 21 22 22 3/4 23 5/8 24 It is the result of UFQ R&D team's years hard work and continuous improvements.But much lighter in weight,more comfortable,much better for the bluetooth features than Bose A20 aviation headset We compared several big brands' bluetooth aviation headsets.We are confident that UFQ bluetooth aviation headsets(adapters)have the most powerful bluetooth features in the aviation headset market in the world! If batteries low will still work as a ANR aviation headsetIf batteries off will still work as a PNR avition headset! UFQ aim at delivering maximum value to our customers for their investments and ensure that our clients get a high return on investment when they choose us! bluetooth ANR aviator helmet UFQ BT AHA28 pilot aviation helicopterIt is the result of UFQ R&D team years hard working and continuous improvements.1. Light weight bluetooth pilot headsets ANR 2. Advanced reverse noise canceling technology, reducing up to 90% background noise. 3. Super comfortable for extended use,allowing you enjoy longer flights in comfort.4. Amplified electret noise canceling microphone.5. Enhanced high fidelity sound speaker system for crystal clear communication.6. Great music sound quality with the new sound processing chip.Enjoy music while you fly with Bose's level quality Hi-Fi speakers. 7. Bluetooth 5.0 allows you to connect to two devices at the same time8. Enables you to use your Bluetooth cell phone and any music source wirelessly in the cockpit9. Supports mono and stereo intercoms10. A young girl's voice prompt11. NEW Modern design12. Dual volume controls for precise level control for each speaker13. Three types Audio Priority ModesAUTO: With incoming transmission, Bluetooth and Aux are muted,and resumes after the transmission ends.MIX: Aux and Bluetooth continue to play with the transmission.OFF: Only transmissions are heard, Bluetooth and Aux are muted14. USB type C external power source input, to by pass batteries for power USB POWER Rated INPUT: 5.0VWith USB type C power source input, you can use together with Power bank so can last for MANY hours15. Auto Shut-Off capability16. Low Battery Indicator and voice prompt17. Cellphone can show battery level when bluetooth is connected(Not suitable for all cellphones)18. Two AA batteries provides 20-25 hours of continuous usage19. Bluetooth volume control has previous/next songs function,When connected with the AUX line, this control can also control the volume of the AUX in audio20. Don't consume any battery power when power OFF(Unlike some competitors' headsets still consume battery power when power OFF)21. With 3.5 mm Aux input jack bluetooth ANR aviator helmet UFQ BT AHA28 pilot aviation helicopter,compare to BOSE A20 aviation headset with bluetooth How to purchase 1) choose the colors of helmets usually we have 2 kinds in stock black or white 2) choose which sizes of helmets How to Measure your head size? 3) choose which connectors We have different connectors for this item 1) GA twin plugs or Boing connector Battery Powered2) Helicopter U174/U single plug Battery Powered3) Airbus 5 pin XLR male Battery Powered4) Lemo 6 pin male Battery or Aircraft Powered 5) 6.35mm plug for ULM or Ground Support If you want other connector please leave us a message when you make the order Usually, GA twin plugs as default Note please:When choose Lemo 6 pin connectorbesides battery powered the unit also can be powered via aircraft directly. UFQ A28 ANR headset test and close call in traffic pattern. https://www.youtube.com/watch?v=kHPabET-PoE&t=2181s Test: UFQ L1, A28 & A7 | Bose Aviation Headset X|Rugged Air RA200 https://www.youtube.com/watch?v=UO3zYtTaBRQ Here are some customers' feedback1)Very good headset,lightweight,and blocks lot of noise.Comfortable for long flights.2)Good seller!!! Worked perfectly!! Great headset!!!3)Good product at a great price, thank you!4)Quick shipping. Smooth transaction. item just as described.5)Awesome product, ultra fast delivery, thanks for the excellent service provided6)Nice and comfortable!7)Awesome product, ultra fast delivery, thanks for the excellent service provided8) Great seller to work with!!A Free good quality headset bag is included for each headset! bluetooth ANR aviator helmet UFQ BT AHA28 pilot aviation helicopter,compare to BOSE A20 aviation headset with bluetooth