High-concerned chemical : None<br>Electronic : No<br>Type : Subwoofer<br>Model Number : BK-3381<br>DIY Supplies : Electrical<br>Origin : Mainland China<br>Brand : Other<br>Model : BK-3381<br>Time to Market : Other<br>Origin : Mainland China<br>Type : Subwoofer<br>Applicable Population : Other<br>Interface Type : Other<br>Connection Method : 3.5MMAudio Jack,Bluetooth Connection<br>Frequency Response Range : Other<br>Output Power : Other<br>Signal-to-Noise Ratio : Other<br>Channel : 6Enhanced Version(Deep Bass Sound Quality Long Battery Life),6Enhanced<br>Power Supply Mode : Built-in Lithium Battery<br>Operation Mode : Other<br>Expand Storage : Other<br>Number of Speakers : Other<br>Bluetooth protocol : Other<br>Effective Distance : Other<br>Battery Capacity : Other(A)<br>Playback Duration : Other<br>Shell Material : Plastic<br>Box Material : Other<br>Appearance Size : Other<br>Product Weight : Other(KG)<br>Processing Mode : Other<br>Fastest Shipping Time : Other<br>Certificate Type : Other<br>Certificate Number : Other<br>Shipping Logistics Company : Other<br>Logistics Service : Other<br>after-Sales Service : Other<br>Invoice : Other<br>Packing List : Other<br>Function : Deep Bass Stereo Sound<br>Display Screen : None<br>Supported Formats : Other<br>Package Type : Other<br>Playback Format : Other<br>Speaker Adjustment Method : Other<br>Item number : Other<br>