IP67 is a standard ranking these days indicating extremely resistant and possibly rugged audio system suitable for from doorways audio system. That’s not just other Hyperboom speakers possibly, but a range of different alternatives within the UE range. If it works with the application, it works with PartyUp. That https://www.bluetoothspeaker.top/outdoor-party-speakers-wireless-karaoke-bluetooth-speaker-for-adults-kids-singing/