15W Bass Amplifier 1 Channel Input,Treble/Bass Control, Volume Control,Headphone Jack,Speaker: 6.5" 15W Bass SpeakerProduct name: 15W Bass AmplifierProduct model: ... cartonCertificates available:CE,EN71, RoHS, ASTM, ISO9001:2000Features:1 Channel InputTreble/Bass ControlVolume ControlHeadphone JackTechnologies parameter:Output Power15W 4Ω S/N ... We will be at your service any time. 15W Bass Amplifier