Power Source:Battery Support Apt-x:No Support APP:No Battery:Yes Number of Loudspeaker Enclosure:1 Audio Crossover:TWO-WAY Waterproof:Yes Communication:AUX, bluetooth, usb, Audio Line Support Memory Card:Yes Speaker Type:Subwoofer Remote Control:No Cabinet Material:Plastic Frequency Range:100HZ-20KHZ Display Screen:No Intelligent Personal Assistant:None Voice Control:No Built-in Microphone:No Brand Name:N/M Model Number:AJ-503 Type:Active Use:HOME THEATRE, Portable Audio Player, Mobile Phone Channels:2 (2.0) Special Feature:Wireless, PORTABLE, Mini Place of Origin:Guangdong, China Bluetooth version:5.0 Product name:AJ-503 Bluetooth distance:20m Battery capacity:500mAh Function:Play Music Package:Retail Package Style:Fanshion Material:ABS Playing time:1-2h Accessories:Black charger Certification:ce