... Function 4) Competitive price Motorcycle speaker with alarm system Ch-2011 with full black colorKey Features :1) Remote and control function ... inchpackingSkinpacking, 20sets per cartonNeutral packing, 36 sets per cartonMain MarketAfrica, Mid-east, Asia ,South Amercia, USA, EuropeFeaturesWith MP3 and FM ... solid-state circuit Motorcycle speaker with alarm system Ch-2011 with full black color