Full Range 2.0 Subwoofer Portable Computer Speakers Mini Bass PC Speaker Portable Music DJ USB Soundar for laptop Phone TV

Features:  - Independent volume adjustment / HIFI sound / desktop subwoofer.  - High-fidelity wire design, multi-layer protection, anti-interference, pull-resistant, better conductivity, and more fidelity sound.  - The small dip design reduces the effect of table reflections on the sound field.  - Rear inverted phase holes for enhanced bass diaphragm.  - Simple design and easy installation.  Specificatins: Colour: Black;  Power: 3W x 2;  Speaker Anti-group: 3Ω;  Speaker Specifications: Φ50mm;  Working Voltage: DC5V/USB power supply;  Frequency Response: 130Hz-18KHz;  Signal To Noise Ratio: > = 80db;  Distortion: < = 0.1%;    Package includes:  1 x Computer Speaker (with Data Cable);  1 x Instruction Manual