JBL Pro Sound features two JBL bass radiators, a separate tweeter, and an optimized long excursion driver. Up to 20 hours of playback are possible with a long-lasting battery. Because of its IP67 waterproof and dustproof rating, you can carry the Charge with you wherever you go. With the PartyBoost feature, you can link several JBL PartyBoost-compatible speakers for an amazing sound or pair two PartyBoost-compatible speakers in stereo. With the integrated Power Bank, you can charge your gadgets continuously. Speaker Type: Bluetooth speakers that are portable. Wireless connectivity technology. A Unique Aspect Stereo pairing, built-in microphone, waterproof, and smartphone charging.