school bell system

{"cid":"91201877","title":"NKG4 NKG-4 Automatic Factory School Bell Control Instrument 40 Groups Din time switch","imgUrl":"https:\/\/img.chinax.com\/nimg\/6a\/ad\/ac341ccb91fbf0ce5529d87df7f8-200x200-1.jpg","attrs":{"Price":"$7.00 - $9.00\/Pieces","Brand Name":"kampa","Model Number":"NKG-4","Minimum Order Quantity":"5 Pieces","Place of Origin":"Zhejiang, China","Max. Current":"16A","Max. Voltage":"AC220V AC110V","Rated control power":"12V-380V AC\/DC","Conventional thermal current":"Ith 16A","Category of the control circuit":"AC-15","Timing error":"1s\/d","Set number of time":"40 groups","Belling Time":"1s~99s","Mechanical life":"30,000 times","Electric life":"10,000 times","Packaging Details":"Unit Type: piece\r
Package Weight: 0.19kg (0.42lb.) \r
Package Size: 11cm x 11cm x 11cm (4.33in x 4.33in x 4.33in)","Port":"Ningbo","Supply Ability":"50000 Piece\/Pieces per Month"}}

{"cid":"91214964","title":"Hot sales service call system, could be use as school bell,canteen pager","imgUrl":"https:\/\/img.chinax.com\/nimg\/74\/e7\/24bde9d49dc52ffbf6fd37f23a42-200x200-1.jpg","attrs":{"Price":"$4.00 - $199.00 \/ Set","Brand Name":"ihomepager","Model Number":"C302+IXD-209B","Minimum Order Quantity":"1 Set","Product Name":"call bell switch","Physical Dimension":"60*28*20mm","Button Weight":"20g (With battery)","Control":"Single Call Button","Output Power":"10dB","Frequency Band":"433.92MHz","Transmission Range":"500m free field","Button Battery":"Button Battery:CR2023","Support Costomed logo":"Yes","Button Feature":"can be paste up anywhere","Selling Units":"Single item","Single package size ":"20X15X10 cm","Single gross weight":"2.0 kg","Package Type":"carton","Supply Ability":"test"}}

{"cid":"91205829","title":"Temperature Face Recognition Terminal With Door Bell Function OEM \/ ODM","imgUrl":"https:\/\/img.chinax.com\/nimg\/2d\/d1\/1ed1993a348602787d53fcf2bab9-200x200-1.jpg","attrs":{"Price":"USD 280-500 set","Brand Name":"Yecon","Model Number":"TR08D","Minimum Order Quantity":"1","Delivery Time":"5-30days","Certification":"CE CCC ROHS","Place of Origin":"China","Payment Terms":"L\/C, D\/A, D\/P, T\/T, Western Union, MoneyGram","Supply Ability":"5000 sets\/Month","Packaging Details":"30*24*9CM 1.3KG Carton packaging","Free Software":"Cloud, Mobile APP, Desktop","CPU":"RK3399","Verify Mode":"Face, Card, Password","Network Communication":"WIFI","Warranty":"1 Year","Operation system":"Android 7.1","Operating Temperature":"-30\u2103 ~ +70\u2103"}}

{"cid":"91199420","title":"Pre school 20x26cm Soft Books For Infants Stimulate Visual And Auditory Sense","imgUrl":"https:\/\/img.chinax.com\/nimg\/7f\/5d\/212540c1cbd28e0a4332350fe7d1-200x200-1.jpg","attrs":{"Price":"1.68$ to 2.96$","Brand Name":"Angelber","Model Number":"AG-PLUSH BOOK-2021021","Minimum Order Quantity":"1000pcs, (or negotiation)","Delivery Time":"25 to 45 working days","Certification":"BSCI, ISO9001, SNAS, CPSC","Place of Origin":"CHINA","Payment Terms":"T\/T, L\/C, Western Union","Supply Ability":"300000pcs per month","Packaging Details":"1pc per 1 polybag, 60 pcs per carton","Product Name":"Infants Pre-School Educational Toys Soft Cloth Cartoon Anime Story Fabric Books For Babies","Materials":"Polyester fabric or customized","Size":"20cm*26cm, or can be customized","Color":"Multi-color printing, can custom","Safety Standard":"EN71\/ASTM\/CPSIA","Available Age":"0-12 month yrs. old","Features":"Soft cloth books with colorful cartoon printing","Function":"Playing to stimulate baby visual and auditory sense","Sample Time":"5-7 working days","Production Time":"25-45 days, which will base on order quantities"}}