... several colors to selection:pink,black A wearable, lightweight (280g), hands-free 20 Watt portable megaphone and portable PA System with a ... leads or cords attaching you to one pointBattery (lithium battery) use time long, can reach 15 hours ,Battery life can ... 3 yearsCooperate with wearing type microphoneAmplification effect is goodEasy to use, can make MP3 playerWith USB,SD/MMC MP3 inputWith echo ...