Sound-producing modification unit A, improved version ver2 Thank you for the many sales in 2025, the high praise, repeat purchases, and also for purchasing Yaen and other items. This sound-producing part is an original, unlike any other, that I created by first considering things from the buyer's perspective. Many people have replaced parts from other companies that broke, and I think it's a skillful part that's worth more than the price. Good parts produce good sound quality from the initial movement even with weak tension. As the Yaen creator, I have improved and created this, and I have repeated actual fishing tests, so it can be used for a long time with peace of mind. Loud sounds give squid a sense of discomfort from the sound of the line, and strong tension also quickly wears out the core of the parts, which has many disadvantages. Please take a good look at the differences in the springs, etc. Production labor costs + material costs = buyer's perspective = I am listing at reasonable prices, considering various factors. If you remove the spring from the 5-pin photo, it becomes difficult to attach and it stretches and comes off easily, so two substitute tubes are included as a bonus. If you use them instead of the spring, you can easily remove and reattach them many times. (Compatible models) 13, 17 BB-X Hyper Force 11, 16, 23 BB-X Despina, Larissa 11, 13, 16 Exsence LB 12, 18 BB-X Remare (Compact type not supported) Photo 4. Sound measurement MAX 81.6dB. It can be heard even from a distance, but there may be some sound errors. Please understand that we will ship after sound testing. For more information, you can search for "Reel sound modification" on YouTube, and you should be able to understand it almost completely. Please modify the sound production at your own risk, understanding the reel structure. New Flip-up Kai K2 Also selling the Hissatsu Yaen Cobra! I will send a comment message soon after purchase, so please be sure to check and reply. Please do this to prevent trouble.