I liked both of these devices with the 7250. Both work well for me. Scalla 500 has a little better sound but the BT800 caller ID is great as I use it all the time to decide whether or not to put the headset on and take the call or send it to voicemail. I love the BT800 just wish it was louder. As far as people I've talked to they seem to think either one is ok. I'm waiting to try the bluespoon 5g, I have it on preorder and want to know how well it works and fit's. The reason I can't purchase the Flamingo is the right ear only option. I use my headsets in my left ear so this is why I can't bring myself to try the Flamingo. I'd love to try that one out maybe they'll make one for both ears or a left ear version sometime in the future.