1. Output short circuit protection 2. Overpressure and overload filter protection 3. Using imported components, real machine test aging safety performance is high 4. Good anti-interference performance 5. Small DC ripple, high working efficiency and fast charging speed. Low working temperature and long service life Input voltage: 5V Output voltage: 5V Output current: 1000MA Interface: Probe interface, magnetic Application model: For nokia steel hr/withings Hybrid Smartwatch Material:plastic colour:black Package Contents: 1 x Charger Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.