UniData WPU-7800 is SIP-based Wi-Fi Voip phone (Incom-ICW-1000G) POWER SUPPLY Power supply input: 100~240 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: 32~122 / 0~50  Relative humidity: 10%~85% PACKAGE CONTENTS Handset, Battery pack, Cradle, Power supply, AC cable, Quick start guide