... practical. l AUX IN for iPad/iPhone/iPod, PC, Mobile, MP3/4, etc. l Precious metals and powerful loudspeaker ... A1 -Mini speaker TypePassive UseHome Theatre, Portable Audio Player, Mobile Phone, Computer, Outdoor Channels1 Special FeatureWireless, Portable, Mini Place ... Colorcoke red,coke blue,gun color, pearl silver, champagn gold,light green MaterialStainless steel ChargingLi-batteries or USB power ...