iFi UP Travel Pocket-Size Bluetooth Travel Companion (Open Box) 4.4mm female which is made up of

which is made up of several operational amplifiers

Due to different volume and music quality

After that

Supports up to 768kHz

iFi UP Travel Pocket-Size Bluetooth Travel Companion (Open Box) 4.4mm female which is made up ofiFi UP Travel First Class Sound. Anywhere. This pocket sized companion lets you take Hi Res Bluetooth with you, anywhere you go. In transmit mode, unlock your wireless headphones with in flight entertainment transforming sound quality as your seat becomes a personal cinema. In receiver mode, upgrade your cars sound system with superior Bluetooth powered by our award winning Hi Fi architecture. Sends or Receives Hi Res Audio via Bluetooth The UP Travel