power bank external power tube

{"title":"Binocular Led Student 18mm Eyepiece Biological Microscope","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/b9\/52\/7365c1634737b6596c2b965cbb83-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"CNOEC, OPTO-EDU","Model Number":"A11.0216","Minimum Order Quantity":"1 pc","Delivery Time":"5~20 Days","Certification":"CE, Rohs","Place of Origin":"China","Payment Terms":"T\/T, West Union, Paypal","Supply Ability":"5000 pcs\/ Month","Packaging Details":"Carton Packing, For Export Transportation","Eyepiece":"WF10X(\u03a618mm)","Eyepiece Tube":"Binocular(Inclination Of 30\u02da)\uff0c360\u00b0 Rotatable","Focus System":"Coaxial Coarse\/Fine Focus System With Up Stop, Minimum Division Of Fine Focusing: 2\u03bcm","Nosepiece":"Quadruple(Backward Ball Bearing Inner Locating)","Stage":"Double Layer Mechanical (Size:125mmX115mm, Move Range: 70mmX30mm)","Abbe Condenser":"N.A.1.25, Rack & Pinion Adjustable","Filter":"Frosted Filter","Light Source":"1W LED With Brightness Control, Optional Rechargeable Battery, External 5V Power Adapter Or Portable Source"}}