Review on 🎧 MaximalPower RHF 617-1N 3.5mm RECEIVER/LISTEN ONLY Surveillance Headset Earpiece - Clear Acoustic Coil Tube Earbud Audio Kit - Compatible with Two-Way Radios and Speaker Mics - Black by David Crawford

I bought two of these. One for me and one for my colleague to use on our work tablets that use the Zello PTT Walkie Talkie app. For this purpose it worked great. We've been using them 8 hours a day, 5 days a week for the past 7 weeks. However, over the past few days we've both found that we're missing some transmissions. The plug connected to the table no longer offered permanent contact. In less than two months they became unreliable and thus unusable. Of course, the return period expired 14 days before the end of the function.