Albrecht Tectalk Worker 3 Case Set 2

They seem to work decently. the headphones you can use to connect dont seem to work sometimes, connections are a bit loose and the setting channels is done by an up and a down button and the voice is chinese. Also the unrealistic ranges on the case are not accurate but we managed to do about 200 meters in densely populated terrain where one of us was inside a faraday cage like concert hall so they are strong enough for our use case. They use publically avalible channels so your conversation is not private but that is to be expected. Overalla decent product for the price only sucks that the the earpieces are not reliable.