射PTT开关粘在头盔上，或者捏在手里，这样说话比较方便。
我找了一下，国外滑翔伞论坛基本都是海外在销售，价格不合适。当然也有一些很专业的，比如消防队员用的指触发开关什么的。但是从老外那儿买成本太高了，我估计都是Made in China的。
中国的杂牌对讲机基地在泉州，深圳广东应该也有一些。比如google以下对讲机配件就有 http://www.power-time.com/Chinese%20Pro.htm 之类的厂家。
因为电路和结构很简单，就是个做工问题而已，要全程使用合格的屏蔽线和优质话筒，否则容易造成锁死发射。谁认识国内小电子厂的人？我估计小厂足以胜任。
Imported from France, the Big Ears PTT is the perfect answer for paragliding, hang gliding and ultralight pilot communications.
Imagine conversing while ascending in a thermal or soaring along a ridge without having to move your hands off the controls! The finger switch allows you to talk by just squeezing the button between any two fingers you choose. This unit features a very stout cable, and the finger switch is water and dust resistant.
The Big Ears PTT includes a headset (speaker and microphone), handset (radio connection, sealed fingerswitch), and installation instructions. Choose the full-face for helmets with a chin guard (mounts inside your helmet) or the open-face model (includes boom and mount for microphone).
The plug on this PTT is the older, two plug type, you may need a Yaesu adapter for the newer Yaesu radios, $24 Add to Cart.
Our products include a 90-day guarantee against defects. If a product is defective in any way, please call (805) 965-3733 or send us an email at bigears@flyaboveall.com. Upon verification, a return merchandise authorization (RMA) will be issued which is be valid for 30 days. Defective items will be replaced or repaired at our discretion. No returns will be accepted without an RMA clearly printed on the outside of package. Installation Instructions and Limited Warranty
深圳太平洋监控市场大把，还同时有吼咪，耳鼓咪。
以前我用耳鼓的，开关在手上，可是我一用，阿强就说：阿丫，不要说话，注意控伞。我又费事解释我用的是什么对讲系统，后来干脆不用了。
果然…………南方是电子器件的天堂阿~~~
在铁罗那里试了火腿给买的该附件，音质清晰，空中该没风噪声，听说才几十圆。
80RMB, 传说中的耳鼓式送话器。
图片稍后。
我是火腿不是胡子.