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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31
Length: 20cm
real-time audio reception is zero-delayed
soft rubber breathable design
40HQ: 1719 cartons * 50 pcs = 85950 pcs
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NEJE N40630 7.5W 450nm Laser Engraver Module Kits, N40630 Knife Sharpener Length: 20cm1. Designed for laser engraver, 3D printer, CNC mill, arduino project. 2. 7. 5W Optical power output, 4mm plywood from 1 pass(speed 100). 3. More Safety, Built in protective glass to protect eyes! Even without wearing protective glasses, the operation is more comfortable. 4. More Quiet, Intelligent drive adjust the cooling fan speed according to laser temperature. 5. Easy use, Digital PWM wave pulse signal generator adjustable frequency duty cycle