16gb devices to hear through walls

{"cid":"91149500","title":"16GB Devices To Hear Through Walls High Detection Sensitivity Lightweight","imgUrl":"https:\/\/img.chinax.com\/nimg\/39\/86\/36c83ae9fb4622ab2ea884cd811a-200x200-1.jpg","attrs":{"Price":"USD per set FOB Shenzhen","Brand Name":"HEWEI","Model Number":"HWCW-IV","Minimum Order Quantity":"1 set","Delivery Time":"12 working days","Certification":"YES","Place of Origin":"China","Payment Terms":"T\/T","Supply Ability":"100 sets per month","Packaging Details":"Carton package, wooden package.","Name":"Listening Through Wall System","Battery Working Time":"5 hours without recording; 4 hours with recording","Total Weight":"956g","Recording memory":"16GB","Headphone output":"3.5\u201d standard interface","Audio adjust":"Gain adjustment, low frequency, high frequency filter adjustment and volume adjustment"}}