Whats in the box:

HTC Desire
Battery
USB Charger
MIcro-USB Data Cable
Stereo Headset
Quick Start Guide

HTC Desire Specifications:

CPU Speed 1 GHz
Platform Android? 2.1 (éclair) with HTC Sense?
Memory ROM: 512 MB
RAM: 576 MB
Dimensions (LxWxT) 119 x 60 x 11.9 mm (4.7 x 2.36 x 0.47 inches)
Weight 135 grams (4.76 ounces) with battery
Display 3.7-inch AMOLED touch-sensitive screen with 480 X 800 WVGA resolution
Network HSDPA/WCDMA:

Europe/Asia: 900/2100 MHz
Upload speed of up to 2 Mbps and download speed of up to 7.2 Mbps
Quad-band GSM/GPRS/EDGE:

850/900/1800/1900 MHz
(Band frequency, HSPA availability, and data speed are operator dependent.) 
Onscreen navigation Optical Trackball
GPS Internal GPS antenna
Sensors Proximity sensor
Ambient light sensor
G-Sensor
Digital compass
Connectivity Bluetooth? 2.1 with FTP/OPP for file transfer, A2DP for wireless stereo headsets,
and PBAP for phonebook access from the car kit
Wi-Fi?: IEEE 802.11 b/g
3.5 mm stereo audio jack
Standard Micro-USB (5-pin micro-USB 2.0)
Camera 5 megapixel color camera with auto focus and flashlight
Audio supported formats Playback: .aac, .amr, .ogg, .m4a, .mid, .mp3, .wav, .wma,
Recording: .amr
Video supported formats Playback: .3gp, .3g2, .mp4, .wmv
Recording: .3gp
Battery Rechargeable Lithium-ion battery
Capacity: 1400 mAh
Talk time:
Up to 390 minutes for WCDMA
Up to 400 minutes for GSM
Standby time:
Up to 360 hours for WCDMA
Up to 340 hours for GSM
(The above are subject to network and phone usage.) 
Expansion Slot microSD? memory card (SD 2.0 compatible)
AC Adapter Voltage range/frequency: 100 ~ 240V AC, 50/60Hz
DC output: 5V and 1A
Special Features Friend Stream