• Frequency Response: 80Hz-12kHz • Output Power: 15W • Output Impedance: 4Ω • Operating Voltage: 3.7V • Battery Specification: 3.7V/2000mAh lithium ion battery • Power Adapter: DC 5V /600-750mAh • Recharging Time: Approx. 6hrs • Playtime: 20hrs • Product Dimension: 118 x 92 x 45mm • TF Card/USB disk: Max. 16G • Format: MP3 • New Weight: 395g
Teaching, tour guiding, outdoor activity, selling, presentation