• Wide compatibility with Amazfit GTR 2, GTR 2e, GTR Mini, GTS 2, GTS 2e, GTS2 mini, GTS4 Mini, Active, Bip 5, Bip 3, Bip U Pro, T-REX Pro, and Zepp E models. • Made of high-quality cable, durable ABS and PVC materials that ensure stable current transmission. • Provides a fast and efficient charging experience when connected to power adapters, computer USB ports, or external batteries. • Built-in overvoltage and overcurrent protection with internal voltage regulator and PTC for safe charging. • Compact and lightweight design, ideal for travelers and business users who need a portable charger. • 1-meter long cable with 2-pin magnetic connector.