Features： 1、Tubing Connection: The connector is used to connect the earplug to tubing for hearing amplifier, make the sound clearer, easy and convenient to use. 2、Scope Of Application: Sound tube and tubing adaptor are available, suitable for box type BTE hearing amplifier, wonderful replacement for the old or broken one. 3、Sound Tube Set: 20pcs of BTE sound tube are available for use, enough to meet your daily replacement needs. Important accessories for hearing impaired people. 4、Multiple Applicable Scenarios: Light weight and compact, easy to store and carry, can be easily put into your bag, suitable for shopping, daily life, travel, etc. 5、PVC Material: Hearing amplifier sound tube is made of great PVC material, eco friendly and odorless, firm and sturdy, stable and not easy to deform, durable. Specification： Item Type: Hearing Amplifier Sound Tube Material: PVC Scope of Application: Box type BTE hearing amplifier Package List： 20 x Hearing Amplifier Sound Tube