Works great as a transmitter, and I can't detect any lip sync issues

zero lip-sync delay between the TV video and its AudioBrightech promises a 3 year personal warranty which makes me think they have faith in their own product and plan on staying in business.+++The bottom line is I put my currently owned high quality electronic devices to use by spending a total of $80 as to NOT have to deal with a pair of cheap bluetooth headphones that would probably sound cheap and then fall apart in a month or two, and or, have to deal with the Deadly "Bluetooth TV Lip Sync Delay Issue"

I went through several transmitter and receivers and always ended up returning them because of the terrible lip sync

Bought 2 units on sale for $20 each; great value for money; I use it for watching TV -- transmitter mode unit plugged in to the TV (with usb power from the TV), and receiver mode unit bound (using a rubber band) on a $40 Skullcandy headset (which comes with a detachable cable)I sit somewhat close to my TV (3 - 4 feet away); sound is good and clear; no noticeable lip-sync lag

I can't speak to latency as I'm just transmitting audio.

I really like the build quality and attention to detail that Anker has put into this unit, Only one minor quibble: the curly cord is so tight that it doesn't stretch far before springing back