K300 Multifunctional Infrared Detector Hotel Anti-Snooping Camera Detection Travel Compass Anti-lost Device(Black)

1. Weight: 36g 2. Material: ABS 3. Dimensions: 9.5 x 4.7 x 1.6 cm 4. Additional function: LED light 5. Wearing method: handheld 6. Battery capacity: 350mAh 7. Power supply mode: built-in lithium battery 8. Charging time: 1-2 hours 9. Power supply mode: USB charging 10. Working time: 8-10 hours 11. Scope of application: hotel camera detection, travel compass, banknote detection(RMB only), etc.