You get what you pay for. This is a very cheap (thin plastic) item. After fully charging this "transmitter" and my Panasonic headphones, I was never able to connect them. The headphones work fine with my other bluetooth enabled devices (phone, smart tv etc) but not this one. They returned the money after 2 painful days. My advice: It's better to spend a little more and buy a higher quality device than those cheap Asian imports.
Sangean PR-D4W Portable Weather Alert Radio with AM/FM Bandwidth Narrowing and Auto Tracking for Improved Searchability
12 Review
KLIM CD Boombox Portable Audio Player with FM Radio, Rechargeable Battery, Bluetooth, MP3, AUX, Neodymium Speakers, and Upgraded CD Laser Lens (2021 Edition)
11 Review
Stream Your Favorite Tunes With AUNA KR-200 SI Internet Kitchen Radio - Spotify Support, Remote Control, And More!
15 Review
Experience Dynamic Audio with Panasonic SC-UX100 CD & USB Wireless Bluetooth 300W Mini Hi-Fi System Shelf Stereo
19 Review