ultra thin multilayer piezo speaker

{"cid":"91219474","title":"Ultra Thin Ceramic Multilayer Piezo Speaker 300Hz - 20000Hz For Answer Back System","imgUrl":"https:\/\/img.chinax.com\/nimg\/1b\/cd\/2cec0a188bba5c7d6eda3cb8072a-200x200-1.jpg","attrs":{"Brand Name":"AUDIOWELL","Model Number":"MT0006","Minimum Order Quantity":"20000","Delivery Time":"30 works days","Place of Origin":"China","Payment Terms":"T\/T","Sound pressure level":"80 dB","Resonant frequency range":"300~20000 Hz","Operating temperature":"-20\u2103 ~ +70 \u2103","Size":"30\u00d720\u00d72mm"}}

{"cid":"91223942","title":"High-precision Jetting Valve with 500,000cps Viscosity and 3.55 KG Controller for Miniature Speaker Assembly","imgUrl":"https:\/\/img.chinax.com\/nimg\/ae\/bd\/be6a3582b874a888ccaae33f7a9b-200x200-1.jpg","attrs":{"Price":"$4500-$10000 \/ pcs","Brand Name":"Mingseal","Model Number":"KPS2000-U","Minimum Order Quantity":"1","Delivery Time":"7-60days","Certification":"ISO, ROHS","Place of Origin":"China","Payment Terms":"L\/C,D\/P,T\/T,Western Union,D\/A","Supply Ability":"200sets per month","Packaging Details":"Carton\/Wooden box","Product":"KPS2000-U dispensing jetting valve\u200b","Applicable viscosity":"1~500,000cps","Jet Frequency":"1~1200HZ","Valve body size":"125.5*75*20mm(with flow channel)","Valve body weight":"440g (flow channel included in)","Controller size":"232\u00d7170\u00d7165 mm","Weight of controller":"3.55 KG","AC power Input":"AC 220V\u00b120%"}}