Product description: Bluetooth speaker subwoofer sound bar strip, cylindrical sound, clock alarm clock, this multifunctional home electronic product, compact and practical, easy to carry, belongs to foreign trade explosion electronic products. Connection method: Bluetooth connection, frequency response range: 100HZ-20KHZ, output power is 20W, USB interface type, battery capacity, 4000mah, signal-to-noise ratio ≥75dB, black, black, and red three colors, cross-border package weight 1.0 kg, in stock. Fast delivery to meet demand.