Bought 2 about 4 years ago and had them paired at my work office. I have since retired and only kept one speaker, which I replaced with a table radio about 1 year ago.


It's in great condition and works as intended. There is no app anymore but you can set it/them up with your Android phone, see below...


From the Reva, Arena page online, they have instructions for apple products as well:


Android Device:  Use Google Home App:


Log in (Required) will allow the user to setup and group Riva Arena and Festival speakers.              


Select Devices at the bottom of the App.


Select the +Add button


Select "Google Nest or Partner device"


Choose/Create a home


Follow on-screen directions to complete Wi Fi setup of your Riva speaker



And here the AI description:



The Riva Arena Bluetooth, WiFi, Chromecast Speaker in black is a portable speaker system that offers high-quality sound up to 60W RMS power. With Bluetooth and Wi-Fi connectivity, this speaker is compatible with Apple devices and allows for seamless wireless streaming. The sleek black design, compact size of 5" length and 7" height, and lightweight design of 7 lbs make it easy to transport and use in various settings. Additionally, the speaker comes with a 1-year manufacturer warranty, ensuring reliability and peace of mind.