3 5khz piezo door alarm buzzer

{"cid":"91198955","title":"DC2.83V 50MM*18MM 100dB 25khz Waterproof Piezo Electronic Alarm Buzzer","imgUrl":"https:\/\/img.ismap.com\/nimg\/bf\/bb\/732c140b94df218321ab93736304-200x200-1.jpg","attrs":{"Price":"negotiable","Brand Name":"TAIMI","Model Number":"TM-3825 4140 5120 20khz 25khz ultrasonic speaker","Minimum Order Quantity":"1000PCS","Delivery Time":"10~15days","Certification":"ISO9001\u3001ISO14001\u3001IATF16949","Place of Origin":"CHINA","Payment Terms":"T\/T","Supply Ability":"1000000\/month","Packaging Details":"safe packaging","Material":"ABS","Operating voltage":"3-24V Piezo Electronic Alarm Buzzer","Rated Voltage (Vrms)":"2.83VDC","Function":"ultrasonic speaker for pest repellent","Min Sound Output":"95dB 12VDC\/30cm","Warrenty":"3 years","Operating temperature":"-20\u2103 to 70\u2103","Type":"ultrasoinc speaker","Sound Output at 10cm (dB)":"\u2265100","Weight":"6 g","Resonant Frequency":"20\u00b15 khz","Size \/ Dimension":"41x3mm","Efficiency - Type":"Sound Pressure Level (SPL)","Temp. range":"-20\u2103~60\u2103","Capacitance 120Hz (PF)":"20000\u00b1500","Operating Voltage (Vrms)":"30 max"}}

{"cid":"91188875","title":"\u03a623*12mm DC Type Miniature Piezo Buzzer 3.5V 5V 6V For Security Door Alarming","imgUrl":"https:\/\/img.ismap.com\/nimg\/c5\/81\/d1e828212b2a277c7125280adb50-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"ANYO","Model Number":"2312YX","Minimum Order Quantity":"500pcs","Delivery Time":"8-10 work days","Place of Origin":"CHINA","Payment Terms":"L\/C, T\/T","Supply Ability":"10000pcs per day","Packaging Details":"customized carton","Other name":"Active Piezo Buzzer","Rated voltage":"3.5V; 5V; 6V","Operating voltage":"3-6V","Rated current":"\u226410mA","Sound output":"\u226585dB","Resonant frequency":"3300\u00b1500Hz","Operation temperature":"-20~+60\u2103","Material":"ABS"}}