I have tried so many audio transmitters/receiver sets and they have all had some issue or another. Limited range, poor audio quality, susceptible to interference from cell phone, range of 100 feet or less, you name it. I very recently ran across these by HHL and I can’t believe someone finally made a set that ran long range, great sound quality, simple setup and not on the 2.4 ghz spectrum with a everyone’s cell phone! These are exactly what I have been waiting for! They are very solid and well made too! I need to be able to send audio from a mixer over 200+ feet and these do it without any effort, or dropouts, and sound like a wired speaker setup! I haven’t run across any setup yet that challenged them! Thanks so much to the engineers at HHL for finally making a transmitter/receiver sets worth buying!,,

The media could not be loaded. The receiver has so many different options that you can play around with until your sound is smooth and crisp. I like the option to plug it directly into your instrument. Would buy again

The media could not be loaded. These are such good quality they are super convenient and come in a really nice bag/ holder. Their a great size a lot of other ones like this are way to bulky these are great the sound quality is wonderful easy to work with. I’m really glad I have these would definitely recommend to any musician or anyone needing this product great value for product. Perfect for travel. Love them

USA version: The frequency range of these units is 565.0 to 586.6 MHz. These frequencies are shared with USA UHF TV channels 29 to 33. TV stations have room-sized transmitters that may produce an effective radiated power of one million Watts. Wireless microphone transmitters produce a mighty .01 Watt, for the most part. The inverse-square law is your friend, but be realistic. :) Consult the FCC DTV Reception Maps for your intended use location, and you will find reference received signal strength for the TV channels there. (Note that the displayed channel number is usually NOT the actual RF channel. Click the station on the list, and the truth shall be revealed.) To minimize interference, pick your wireless frequencies in the TV channels with the lowest reference signal strength. If you're using several wireless systems, the rule of thumb is to allow at least 1 MHz between channels, and space them irregularly to minimize intermodulation issues.Quirk: The F30 units have a quirk. I currently have four pairs, and this is present on all four. The "topping" part of the charge cycle seems to take a loooong time. If you want these fully charged, let them go overnight, or even longer.

I bought this for sound field testing, and I was drawn to the it’s long range capabilities,and sure enough, it delivered! When I plugged the transmitter into the mixing console and tested the distance with a small portable speaker, it felt like it reached even farther than the advertised 470 feet. It also works great for sound field testing.In terms of frequency response, there was no noticeable difference compared to wired testing, which means there’s no loss in high or low frequencies. The latency was a consistent and stable 4.23ms more than wired, which is not an issue at all. It’s incredibly convenient and so much easier than dealing with long cables.Using my Mackie active speaker to play bass-heavy rock music, I compared the direct wired connection to the signal transmitted through the F30. Honestly, I could barely tell any difference. If wireless audio transmission range is important to you, I would recommend it.