AI Sound Boost. Bluetooth v5.4 with LE audio. Multi-speaker connectivity with Auracast™ with JBL enabled speakers. Flexible handle and ergonomic design. https://www.thewirelesscircle.ae/jbl-partybox-520-portable-party-bluetooth-speaker.html?srsltid=AfmBOor4RcqP7uSTEmYQCLf0-jimBIAk27YXhN38Cy4x1zyckUoBNGYa