Always stay in touch and never be out of power! The Micro USB Retractable Home/Travel Charger for Samsung Galaxy Express LTE SGH-i437 (AT&T) makes it super easy to virtually always have a fully charged battery. The retractable cable extends to the length you need to recharge your battery. Simply push the retract button an the cable rewinds back into the plug for easy storage. Equipped with Smart IC Chip technology, it preserves battery life and prevents overcharging.