【BOSE A20 (with case, plugs, and kneeboard)】 BOSE A20 Aviation Headset with Bluetooth Original price: ¥138,600 I am selling this because I no longer have the opportunity to use it. I purchased it from the BOSE official website in 2021. Usage time is 250 hours. Aircraft used: C172 SR20 SR22 G58. There is some damage to the ear pads, but there are no problems with use. It has been confirmed to be in good working order by a certain buyer (as of October 15, 2025). As an added bonus, I will include a kneeboard. It originally cost around 10,000 yen, so it's a great deal. Please consider this opportunity. Thank you! 【High-Quality Sound】 BOSE's Aviation Headset features clear sound quality and excellent noise-canceling capabilities. It is especially ideal for use in aircraft. 【Convenient Control Unit】 The included control unit is equipped with volume adjustment and mute functions, providing a comfortable user experience. It also has Bluetooth functionality, allowing for wireless connection. 【Convenient to Carry】 A dedicated case is included, making it easy to carry. It is also convenient for travel and business trips. - Brand: BOSE - Model: Aviation Headset - Accessories: Control unit - Connection type: Wired - Bluetooth function: Yes - Volume adjustment: Independent adjustment for left and right - Mute function: Yes Thank you for viewing. Other... Noise canceling No box included. Everything in the photos is included. Returns and refunds after purchase are not accepted as they may cause trouble, so please understand. Other... Noise canceling