1. Purpose: GPS jammer 2. Scope of application: vehicle GPS 3. Alarm mode: wireless 4. Detection frequency band: 1.0~2.0 (MHz) 5. Working range: 1 (meter) 6. Working voltage: 12~24 (V) 7. Weight: about 60 grams 8. Dimensions: 9.5 x 4 x 2cm 9. Note: only the card-free GPS signal can be blocked
