Audio driver: 2-inch diameter x 4 tweeters, 3-inch Subwoofer. ;XD POWER Sound with an array of 8 bass radiators with massively loud volume.;3EQ modes provides 3 types of audio effect;TWS (True Wireless Stereo technology when connecting two speakers) ACTION 5.0. Battery capacity 12000 mAh. Playtime 11 hours at 50% volume. Type C charge time 2 hours;Built-in microphone. Siri voice assistant. Intuitive controls with LED lighted buttons. Stylish carrying bag