Memory flash: 8 GB
Available memory: approx. 1.89GB
Operating voltage: 2.7 V - 3.6 V
Average operating current: max 65 mA (serial transfer); max 100 mA (parallel transfer)
Standby current: max 1.5 mA
Maximum parallel transfer speed: 160 Mbps (20 MB / sec)
Minimum write speed: 15 Mbps (when combined with optimised Memory Stick PRO(TM)-compatible devices)
Dimensions (W x L x T): approx. 20 x 31 x 1.6 mm
Weight: approx. 2 g
Environmental temperature: -25c to 85c non-condensing

This product is Compatible with:
Sony Ericsson D750i, K750i, P910i, P990i, V800, W800i, W810i, W900i, Z800i

Also: Sony PSP and ALL NEW Sony Digital Cameras and Video Cameras Plus many other MP3 players, digital cameras, PDA's and mobile phones.
 
Note : 
1 Memory Stick® Media Storage Capacity
Available storage capacity of Memory Stick®, Memory Stick PROâ„? Memory Stick Duoâ„?and Memory Stick PRO Duoâ„?media may vary. A portion of the memory is used for data management functions. Actual available memory is: 32MB=30MB, 64MB=61MB, 128MB=123MB, 256MB=220MB, 512MB=460MB, 1GB=940MB, 2GB=1.85GB, and 4GB=3.66GB
2 80 Megabits Per Second Read and Write speeds
Measured by Sony under optimized conditions. Speed varies by usage conditions and devices used, which requires compatibility with high-speed parallel data transfer interfaces.
3 Memory Stick® Media Backward Compatibility
Proper operation of Memory Stick® Media with all devices is not guaranteed.