Enjoy an exceptional audio experience with the ZQS6212 speaker, which keeps up with your audio needs thanks to its advanced technologies and high performance, making it the ideal choice for various occasions. Technical specifications for the ZQS6212 speaker: Speaker size: 6.5 inches × 2, to deliver powerful and clear sound. Output power: 10 watts × 2, for a deep and pure bass sound experience. Frequency range: 45 Hz - 18 kHz, to cover all sound layers. Signal-to-noise ratio (S/N): -50 dB, for pure and distortion-free sound. Battery capacity: 3000 mAh, for long hours of use. Voltage: 5V (DC). Weight: 2.3 kg, light and easy to carry.