Review on 🎧 KZ AZ09 Bluetooth 5.2 IPV5 Waterproof Noise Reduction Module Upgrade Cable Ear Hook for ZSX/ZSN/ZSNPRO/ZSNProX/ZS10PRO/AS12/AS16/ZAX/DQ6(C pin) - Enhanced SEO by Josh Lewis

Let's start with the fact that the sound is much clearer than the usual two headphones. I can rate them as in-ear headphones on the same level and budget used by musicians in live performances. KZ SKS has enough bass, but does not reach deep bass. In terms of range, they are scarce and make up about 2-3 medium-sized rooms. Because of the shape I find them comfortable to wear, but the plastic tends to get a bit slippery in the ears after 2 hours. Regarding battery life, I can't give you a legitimate answer as I cycle it on and off in 20-45 minutes. To be honest I like them, but there is one big problem that keeps me from recommending them to anyone. There is strong interference from other wireless devices on the road. When walking past the house, the headphones can sometimes switch off. When you're not in a car or building, you'll hear the audio cut out on busy roads. Sometimes they're okay, and sometimes they're so bad they can't be used on a busy street. Even being indoors will not rid you of interference. Sometimes they crawl out of my own house. If you live or commute in a busy high street area, are a casual listener, and don't identify in the slightest as an audiophile, I strongly suggest you look elsewhere.