Key features Speaker Number of speakers 1 Number of passive radiators 2 tweeters Yes Tweeter diameter (Imperial) 1.91 cm (0.75") Tweeter diameter 2 cm Woofer diameter (imperial) 10.2 cm (4") Woofer diameter 9 cm Audio RMS power 30 W Frequency range 60 - 20000 Hz Music Energy 30 W Connections and interfaces Connectivity technology Wired & Wireless Wi-Fi No Bluetooth Yes Bluetooth version 5.1 USB Connectivity Yes Near field communication (NFC) No AirPlay No Cable length 1.2 m Design Product type Portable stereo speaker Product color White Housing material Plastic Volume controls Buttons Power switch Yes Protection function Dust resistant, Water resistant International Degree of Protection (IP Code) IP67 LED Displays Yes Performance Recommended Use Universal Integrated Card Reader No Equalizer Yes Country of Origin China Supported Mobile Operating Systems Android, iOS Power Battery/Battery Type Built-in Battery Battery Technology Lithium Polymer (LiPo) Battery Capacity