The left speaker is not working. Definitely Recommend This Seller I did not receive the needles, so I can’t rate this product. I was a bit concerned about reviews that said they came up large and were suited for wide feet as I have relatively narrow feet. I was disappointed and tried another brand that turned out ok but also not what Ive had in past. Tried it out with my supervisor and she said my sound was very clear. The sound quality is very impressive. Buy these, you wont be sorry. Stood in a couple inches of water back when they were new while working, maybe for3-4 minutes. The Good:Im not sure whether its the Bluetooth v5 connection or the fact that left and right earbuds are connected together and dont require an additional wireless connection to synchronize and transmit sound, but these units do work quite well in Bluetooth-dense environments.