I was surprised by these M19 Bluetooth headphones. I usually sleep with a TV on, and when I use my earbuds to hear something on my phone. I hear zero background noise from my television. These are great, especially for a good price. The battery life seems good. The product arrived on time. I would recommend them to my friends, kichukino.com is awesome. When I order this earbud they delivered me after 1 day, which means the next day delivery with cod. It's enough to trust them, thank you so much.