
Excellent sound and noise isolation. Bluetooth connection works great. Pairs quickly and easily. However, the range was poor. When I looped the wires around my neck at the back of the collar, the sound became intermittent when my phone (Pixel) was in the front pocket. For me it is inconvenient to hang buttons in front. I was mowing the lawn and had to put it on the collar otherwise the sound was too intermittent. Once I did that I could hear the music clearly and the noise of the mower was well muted, better than anything else I've used. I've verified that it's distance and body noise that caused audio dropouts on various tests, and it seems like the device just can't overcome much. Also, there doesn't seem to be an automatic timeout that turns off the device. I started charging the book fully and put the book on the cassette to turn it off 30 minutes before bed. When I woke up, the battery was dead. It must have stayed connected even after the audio streaming stopped.

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