Jbl pro sound with an optimized long excursion driver, separate tweeter and dual jbl bass radiators Long lasting battery delivers up to 20 hours of playtime Take the charge with you anywhere due to its ip67 waterproof and dustproof rating Partyboost feature allows you to pair two jbl partyboost-compatible speakers together in stereo or link multiple jbl partyboost-compatible speakers for really incredible sound Built-in powerbank lets you charge your devices without taking a break. Bluetooth frequency 2400 MHz - 2483.5 MHz Bluetooth 5.1 IP67-rated waterproof and dustproof frequency response: 65-20,000 Hz JBL Portable app free download from Apple App Store® and Google Play remotely controls volume pair two Charge 5 speakers for stereo wirelessly connect an unlimited number of compatible JBL speakers for simultaneous playback pair with two devices simultaneously 2" x 3-1/2" long-excursion woofer, 3/4" tweeter, and two side-firing passive bass radiators USB-C charging port (cable included) 7500mAh built-in rechargeable lithium ion battery lasts up to 2