This is probably the smallest high-end portable audio recorders. Weighing only 1.7 ounces (49 grams) with battery, only 13 millimetres thick and fits well in a shirt pocket. But do not let the size fool you, as part of its package light, it contains a large 2 gigabytes of memory lets you store up to 3 hours of music to a CD-quality PCM linear mode, or 9 hours continuously when registering to MP3 mode. It comes with software to extract easily register your PC. Yamaha POCKETRAK 2G Pocket Recorder is perfect for the registration of seminars, concerts, or even infiltration missions. Price around $ 300.

[yamaha]