In case it's not stated in the description, do ask us. We guarantee that your issue will be solved quickly. We usually respond within 24 hours on weekdays. Ini for respective Configuration Items-Network / Wi-Fi / Security / SIP Proxy, Account / System setting (language, time, location)/ Basic call Latest version firmware upgrade - POWER SUPPLY Power supply input: 100240 Vac, 50/60Hz Power supply output: 5Vdc, 2A Battery: Li-ion 1100mAh - HANDSET KEYS Send, End, Cancel, 5-way navigation key, 4 soft keys, Number keypad(0 9, , #) DIMENSIONS (H x W x D) 5.9x 1.96 x 0.59 in. /15.0 x 5.0 x 1.5cm Weight: 3.80oz/108g (with Battery) 3.03oz/86g (without Battery) - TEMPERATURE RANGE Operation: 32122?Relative humidity: 10%85% - PACKAGE CONTENTS Handset, Battery pack, Cradle, Power supply, AC cable, Quick start guide. The item "UniData WPU-7800 is SIP-based Wi-Fi Voip phone Incom-ICW-1000G" is in sale since Monday, June 27, 2016. This item is in the category "Computers/Tablets & Networking\Enterprise Networking, Servers\VoIP Business Phones/IP PBX". The seller is "lotoonsca2" and is located in US. This item can be shipped to United States, to Canada, to United Kingdom, DK, RO, SK, BG, CZ, FI, HU, LV, LT, MT, EE, to Australia, GR, PT, CY, SI, to Japan, to China, SE, KR, ZA, TH, to Belgium, to France, to Hong Kong, to Ireland, to Netherlands, PL, to Spain, to Italy, to Germany, to Austria, IL, to Mexico, to New Zealand, PH, SG, to Switzerland, NO, UA, AE, QA, KW, BH, HR, CL, CO, CR.