Power Range:The frequency of this product can be adjusted from 0.01Hz to 20000Hz, corresponding to five different brain waves in the human brain. Among them, the sleep wave δ wave is 0.5 - 3.5Hz; the drowsy wave θ wave is 4 - 7Hz; the relaxation wave α wave is 8 - 13Hz; the stress wave β wave is 14 - 30Hz.
Phone Kickstand,Ultra-Thin Invisible Mini Phone Holder,3 Adjustable Angle Phone Stand,Desk Stand Holder Accessories for All Smartphone,iPad,Tablet-Black 1 Pack
SAR 42
M500 Insulation Tester MEGOHMMETER, Compatible with Supco M500 Electronic Megohmmeter, Battery Operated Instrument up to 1000 Megohms at 500 Volts, M500 Electronic Megohmmeter with Soft Carrying Case
SAR 262
-8%
ERICKHILL EMF Detector, 3‑in‑1 Portable EMF Meter and Radiation Detector for RF, EF, MF, & WiFi Signal– EMF Reader with 3-Color Sound‑Light Alarm, Rechargeable Battery for Home, Office & Ghost Hunting
SAR 241
-20%
KAIWEETS EMF Detector, 3-in-1 Handheld EMF Meter Detects EF, RF, MF, WiFi Signal, Rechargeable Radiation Detector with 3 Color Backlight and Sound Alarm, Suitable for Home, Office, Ghost Hunting
SAR 209
