【Design Feature】Compact 40mm speaker units designed for integration into small electronic and audio devices.<br>【Material & Build】Constructed with metal and rubber components for stable structure and everyday use.<br>【Power Specification】Rated power output of 5W with 4Ohm impedance for standard low-power audio systems.<br>【Frequency Range】Designed to operate within a frequency response range of 150Hz to 20kHz.<br>【Sensitivity】Sensitivity rated at approximately 80 dB per watt for general audio applications.<br>【Size Details】Speaker diameter approx. 40mm (1.57 inches), suitable for space-limited installations.<br>【Application Scenario】Suitable for use in music boxes, alarm clocks, small appliances, access control devices and similar equipment.<br>【Package Contents】Includes 2 speaker units; other accessories are not included.<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-GONGQ trading 3