Recharge a pair of handheld devices at the same time with the Energizer XP4001 power pack. Featuring dual outputs, the Energizer power pack provides simultaneous charging of two devices or one device for twice as long. The XP4001 has a built-in 4000 mAh battery and can provide up to 25 hours extra talk time to a mobile phone (4 hours to a smart phone), up to 120 hours extra playing MP3s, and up to 24 hours extra gaming. Pre-charged and ready to use, the XP4001 is instant power. Rechargeable up to 500 times, the XP4001 includes a user manual, travel bag, AC Adapter, 2x 5-volt USB charging cables and 6 mobile phone tips. Suitable for Apple, Mini USB, Nokia, Micro USB, Samsung and LG handsets.