Wide Compatibility: compatible with Amazfit GTR 2, GTR 2e, GTR 2 eSIM, GTS 2 Mini, GTS 2e, Bip U, Bip U Pro, Pop Pro, Zepp E, Zepp Z, T-Rex Pro is made of high quality wire; ensures an excellent charging experience for your device. High-quality durable ABS + PVC and copper wire ensure stable current transmission, ensuring the charging quality. Fast charging and stable performance: you can connect it to power supply, car adapter, power bank, laptop, etc. This charging method gives you a high-efficiency and stable charging experience. It also provides fast and stable charging. SAFE CHARGING - This charging cable has a pressure regulator and an internal temperature resistor to protect your device from damage caused by overcurrent when connected to the power source. Specially designed for over-voltage and over-current protection, it will protect your watch from damage when charging. Small and practical: it is easy to carry when you go out. Compact and lightweight design for travelers and business people. Fast charging on the charger is more efficient and organized. Note: please charge your smartwatch before the battery runs out.