20mm 166mm handheld recording microphone

{"cid":"90030402","title":"Audio Recording Jammer for Secret Keeping , Handheld Recording Muffler","imgUrl":"https:\/\/img.chinax.com\/nimg\/44\/48\/cae47d30c1e2d29690b8762029f6-200x200-1.jpg","attrs":{"Brand Name":"EST","Model Number":"007MINI-S","Minimum Order Quantity":"1PC","Delivery Time":"3-7 working days upon payment received","Certification":"CE, RoHS","Place of Origin":"CHINA","Payment Terms":"T\/T, Western Union, Paypal","Packaging Details":"netural packing","Material":"Metal","Color":"Black","Function":"Voice recording device as Cell Phone, Recording Pen, Audio, Hidden Microphone and etc.","Power Supply":"AC 110-240V, DC 12V","Battery":"Built-in 12V 2000mAh"}}

{"cid":"91184015","title":"Handheld Cell Phone Vioce Recorder Mobile Phone Signal Blocker Wireless Up To 1.5m Range","imgUrl":"https:\/\/img.chinax.com\/nimg\/b0\/2e\/1bada5b14307f073483bfb3d4629-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"Sacontelecom","Model Number":"SA-AJ02","Minimum Order Quantity":"10PCS","Delivery Time":"3-7 working days upon payment received","Certification":"ISO9001, CE","Place of Origin":"China","Payment Terms":"L\/C, T\/T, Western Union, , Paypal","Supply Ability":"10000pcs\/month","Packaging Details":"netural packing","Product Name":"Voice Recording Device","Function":"Voice Recording Device As Cell Phone, Recording Pen, Audio, Hidden Microphone And Etc.","Battery":"Built-in 12V 6000mAh (3*2000mAh)","Shielding Radius":"0.5-1.5meters","Power Supply":"AC 110-240V, DC 12V","Weight":"0.6kg"}}

{"cid":"91220556","title":"Optical Input Black 50W Handheld Portable Recording Megaphone for Military Exercises","imgUrl":"https:\/\/img.chinax.com\/nimg\/38\/24\/b0be4eaac0cd602c625f4657aeb6-200x200-1.jpg","attrs":{"Price":"$15.00\/pieces 100-499 pieces","Brand Name":"UM AUDIO","Model Number":"UM1600","Minimum Order Quantity":"100 pieces","Power Source":"Battery, DC","Support Apt-x":"NO","Support APP":"NO","Battery":"NO","Number of Loudspeaker Enclosure":"1","Audio Crossover":"Full-Range","Set Type":"Speaker","Material":"Plastic","Waterproof":"NO","Communication":"usb, Optical Input","PMPO":"50W","Support Memory Card":"Yes","Speaker Type":"PORTABLE","Output Power":"25W","Remote Control":"NO","Cabinet Material":"Plastic","Frequency Range":"60Hz-23KHz","Display Screen":"Yes","Intelligent Personal Assistant":"none","Voice Control":"NO","Built-in Microphone":"Yes","Private Mold":"NO","Type":"Active","Use":"Portable Audio Player, Outdoor","Channels":"1","Special Feature":"Wireless, PORTABLE","Place of Origin":"China","Certification":"ce","Packaging Details":"Gift box and standard export master carton","Port":"Ningbo, Shanghai","Supply Ability":"500 Piece\/Pieces per Day"}}

{"cid":"91219484","title":"Recording Megaphone , 800m Voice Coverage , Portable , Wireless Bullhorn","imgUrl":"https:\/\/img.chinax.com\/nimg\/6c\/68\/b60662e399426d721f4fa2ce9a6c-200x200-1.jpg","attrs":{"Brand Name":"OEM","Model Number":"JM-10SB","Minimum Order Quantity":"100-300","Delivery Time":"15 days","Certification":"CE","Place of Origin":"China","Payment Terms":"T\/T, Western Union, MoneyGram","Supply Ability":"5,000Capacity Month","Packaging Details":"Packaging 1pc one color box , 4pcs Carton","Type":"Recording Megaphone","Battery":"Dry Cell 8X1.5V C\/D (MU-2\/1) or Li-battery","Feature":"Recording 260-seconds","Function":"Talk , Siren , Music , Recording voice","Material":"ABS Housing","Power":"Speaker 25W Raded \/ 50W Max","Sound Coverage":"800M","Dimension":"230X350MM","Volume":"500X500X370MM","Weight":"1.5kg"}}

{"cid":"91171271","title":"L8 Mini Handheld Tour Guide Microphone , Radio Guide System ROHS Approved","imgUrl":"https:\/\/img.chinax.com\/nimg\/af\/56\/a6c0a25bc63203b78e948bf850bf-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"humantek","Model Number":"L8","Minimum Order Quantity":"1pcs","Delivery Time":"7days","Certification":"CE,RoHS","Place of Origin":"China","Payment Terms":"L\/C,Paypal","Supply Ability":"1000 pieces per week","Packaging Details":"packed in carton box","Product":"Tour guide device","Color":"Black","Component":"Transmitter&Receiver","Feature":"Cost-effective","Power":"AAA Battery","Application":"Tour guide reception"}}

{"cid":"91223711","title":"CG5568BS Handheld Acoustic Imager","imgUrl":"https:\/\/img.chinax.com\/nimg\/83\/72\/0ab4955287e2739cb10ca825f0b8-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"CDI","Model Number":"CG5568BS","Minimum Order Quantity":"1","Delivery Time":"15-20 days","Certification":"UL\uff0cCMC\uff0cETL\uff0cRoHS\uff0cGS\uff0cCE\uff0c3C","Place of Origin":"CHINA","Payment Terms":"L\/C,T\/T,Western Union","Microphone Configuration":"Equipped with 138 high-sensitivity digital MEMS microphones, arranged in a spiral array, which can accurately capture the ultrasonic energy radiated from fault points.","Detection Function":"Capable of partial discharge detection (including PRPD spectrum, supporting measurement of suspension, surface, corona and other discharge modes), leakage detection, etc., with an imaging frequency range of 2kHz - 100kHz.","Positioning Performance":"The positioning distance is 0.3 - 150m, the positioning error is less than 0.05m@1m, 40kHz, and the lateral resolution is less than 0.30m@1m, 40kHz, which can accurately locate fault positions.","Imaging and Display":"The imaging frame rate is 25FPS, matched with a 4.3-inch color capacitive touch screen, supporting photo taking, video recording and viewing. The acoustic image positioning is accurate and intuitive.","Leakage Detection Accuracy":"It can detect a minimum leakage of 0.15ml\/s at 0.5m and 0.5MPa; and a minimum leakage of 0.2ml\/s at 1m and 0.5MPa.","Wireless and Data Transmission":"Supports Wi-Fi and Bluetooth connections, has USB data transmission function and can output reports. The data storage formats include Jpg, wav (recording), mp4, and the TF card storage capacity is up to 128GB.","Environmental Adaptability":"The operating temperature range is -20\u2103 to 50\u2103, and the drop protection level is 1m, which can be used in various industrial environments.","Auxiliary Functions":"It has automatic gain (automatically increase sensitivity when the signal is weak), threshold adjustment (filter background noise), focusing function (reduce interference from other noise cloud maps), etc. It also supports text and voice annotations, facil"}}