Product: ROJECO 4000mAh Smart Cat Odor Purifier For Cat Litter Box Deodorizer
Deodorization rate ≥99%
100% Cat Friendly & Fragrance-free 
Battery: 4000mAh
Working Time: About 7 days
Automatic sensor: 24 hours Monitoring
The quiet design below 20dB
Size: 3.7*3.7*9.3mm
Operating Hours: 24h/7d
Battery Life: up to 7 days on a single charge
Charging Method: USB Powered(≤ 5v input)
Weight: 182g