New Factory Unlocked Huawei U8686, T-Mobile Prism II, Black, International GSM Android Phone, Unlocked to work with AT&T, T-Mobile, all GSM Network worldwide Huawei U8686, T-Mobile Prism 2, Black, GSM Phone This cell phone may not include a US warranty as some manufacturers do not honor warranties for international version phones. Please contact the seller for specific warranty information.