Supply voltage: 3.6~5V Power consumption: 0.001 w Improved version with double horn. Welcome sounds in 5 languages: Chinese, English, Korean, Thai, Japanese. Application: Shops, Shopping Complexes, Luxury Hotels, Offices, Factories, Houses, Villas, Driveways, Walking Paths, Supermarkets, Restaurants, etc. When the customer passes through the detection area, the receiving host sends a greeting, creates a user-friendly shopping environment for the store, and reminds the salesperson that customers are arriving. Anti-theft at night, keep the store in peace. After proofing, it can be used as an anti-theft alarm, alarm volume up to 113dB. Doorbell Mode: 8-chord music chip, 40mm large horn, 36 alternative welcome songs, change casually. The color light reminder mode is suitable for quiet environments such as offices. Some...