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- Horn unit: 50mm external magnet Connection mode: 3.5MM audio socket Interface type: USB Frequency response range: 30Hz-15kHz Playback duration: 8 hours Extended storage: not supported Number of speakers: 3 Effective distance: 10m Operation mode: knob Shell material: plastic Supported formats: Bluetooth connection Built in battery capacity: no battery Audio line length: about 1.1m Output power: 3W Power supply mode: DC5V Brilliant lights, ice blue atmosphere lights, full of sense of technology Wide compatibility: computer, mobile phone, notebook Optimized for superior sound quality, this speaker provides a powerful bass response and a crisp, clear treble. Its wireless Bluetooth connection provides a seamless listening experience, while its 3 watt output power and 30Hz-15kHz frequency response range will take you quickly from rumblings of thunder to the highest highs. Its 3 speakers and 10-meter connection range mean you can enjoy a supreme sound quality anywhere.