Astro A40 TR plus MixAmp review: A tough sell nowadays, but still a top-notch headset | PCWorld
Earphone for Samsung Galaxy A40,Samsung A 40 Universal Earphones Headset Music with 3.5mm Jack Hi-Fi Gaming Sound Music Wired Noise Cancelling Dynamic Original YR- AII 2 White : Amazon.in: Electronics
New Earphones Headphones With Mic For Galaxy A40 A50 A60 A70 A80 | eBay