Exilim EX-Z4U Features:
4.0-Megapixel effective CCD imager
Credit card-size stainless steel body, only 23mm thick
Still Image: 2304x1728, 1600x1200, 1280x960, 640x480
Audio recording, attach to images or audio-only
Pentax 3x optical zoom (35-105mm equiv) with 4x digital zoom
Less two second startup time
Fast shot to shot time - even with flash
AF Area is selectable: Multi or Spot AF
10 Megabytes of internal memory
Automatic 4 to 1/2000 sec. shutter speeds
Built-in flash with Red Eye Reduction
2" TFT color LCD with 354x240 (84,960 pixels) resolution
4X playback zoom magnification
USB 1.1 data transfer to PC or Mac computers
Lithium rechargeable battery and charging cradle included
Secure Digital/MMC card slot for memory expansion
DPOF, PRINT Image Matching II, Exif Print and Epson USB Direct-Print compatible
NP-20 Battery for Exilim EX-Z4U
Brand New high quality generic(non-OEM)
Battery Type: Li-ion digital camera battery
Battery Output Voltage: DC 3.7V
Battery Capacity: 650 mAh
This high quality, rechargeable Li-ion NP20 battery Compatible with the following Casio models : Casio Exilim Series: Exilim EX-M1 , Exilim EX-M2 , Exilim EX-M20 , Exilim EX-M20U , Exilim EX-S1 , Exilim EX-S100 , Exilim EX-S100WE , Exilim EX-S1PM , Exilim EX-S2 , Exilim EX-S20 , Exilim EX-S20U , Exilim EX-S2PW , Exilim EX-S3 , Exilim EX-S500 , Exilim EX-Z3 , Exilim EX-Z4 , Exilim EX-Z4U , Exilim EXZ60
Place to buy Exilim EX-Z4U Battery ( casio lithium ion np-20 ) http://www.my-batteries.com/digital-camera-batteries/casio-np-20.htm
NP-20 Battery in uk http://www.shopbatteries.co.uk/digital-camera-batteries/casio-np-20.htm