Here are some differences between AuraCast and Partycast:

1. Partycast is a one-way control system where only the host device can control slave devices, while slave devices cannot control the host. AuraCast is a bidirectional control system where both host and slave devices can mutually control each other.

2. Compared to Partycast, AuraCast offers more stable Bluetooth connectivity and lower latency.

3. AuraCast is incompatible with Partycast, meaning speakers supporting AuraCast cannot connect to speakers that support Partycast.

4. Neither AuraCast nor Partycast can establish cross-brand connections between devices of different brands.

If you have additional questions, please contact us at service@soundcore.com for further assistance.