Features : 

PartyPlay function and built-in power bank

With PartyPlay function: possibility to connect up to 10 PartyPlayIII compatible speakers

Powerful speaker (2x 15 watts RMS) for impressive sound and powerful bass

Built-in power bank to easily charge mobile devices without interrupting songs

Wireless music streaming via Bluetooth®

Up to 15 hours of music playbackI

Waterproof according to IPX7 standard (protection against short-term immersion)

True Wireless Stereo (TWS) function: wireless stereo sound between two speakersII

Charging cable (USB-C), 3.5mm AUX cable and quick start guide included

Bluetooth® version: 5.3

Dimensions: approximately 26.5 x 10.2 x 9.8 cm (WxHxD)