From ALI EXPRESS
 
Origin: CN(Origin)
Pest Type: Mosquitoes
Repellent Type: Mosquito Repellent Bracelets & Buttons
Rated Voltage: None
Color: black, red (optional)
Material: skin-friendly and soft TPU
Voltage: DC/ 5V
Rated power: 1W
Product size: 24.8 x 3 x 1cm
Waterproof rating: IP67
Lithium battery capacity: 90mAH
Product power supply: built-in battery
Charging method: USB
Endurance working time: 60 hours
Quantity: 1pcs
Support: Dropshipping