1. Output short circuit protection, overvoltage and overload filter protection 2. Using high-quality components, the real machine test aging safety performance is high 3. Good anti-interference performance 4. Small DC ripple, high working efficiency and fast charging speed 5. Low working temperature and long service life 6. Small and exquisite appearance, easy to carry (spring key chain and keys for backpack) 7. Compatible models: Huawei Watch 4 Huawei Watch 4 Pro Huawei Watch Buds
