Compact Universal Battery Charger with LCD Display For ZTE Force N9100 9100, Avid 4G N9120 9120, Concord II Z730, Sonata Radiant Z740 Fortress Brand (Charger) Perfect Travel Companion Ideal for charging a spare battery Small and compact design works with 110-220V Automatically detects positive/negative polarity contacts Compatible with Most cell phones, PDA, MP3 players and digital cameras with Li-Ion, Ni-MH batteries.