Considering the multitude of Bluetooth headsets out there which claim to be the smallest this world has to offer, we're not apt to believe that ADTEC's AD-HSM10 is actually the most diminutive, regardless of what the firm promises. Nevertheless, this wee earpiece is indeed tiny, and since this little bugger only weighs five grams, you might just forget it's even resting in your ear canal. Reportedly, it can last through three solid hours of yappin' (or 100 hours in standby), and just in case you're not down with silver, there's also a titanium version out there. 'Course, it needn't be mentioned just how similar this thing is to Motorola's Miniblue H9, but regardless, those interested can snag one of their own in late January for ¥8,980 ($78).

[Via Engadget Japanese]

Nextlink certainly isn't the first company to boast about having the "world's smallest Bluetooth headset," but judging by some quick math, its Invisio G5 may actually be the most diminutive -- for the moment, at least. Measuring in at just 3.3- x 1.6-centimeters and weighing less than six grams, this wee earpiece has an abnormally high risk of vanishing, but at least it will last through some 20-hours of yapping if you do manage to keep track of it. The unit also comes with a protective charging case, and the Soft Spring technology purportedly enables it to "adapt perfectly to the contours of the ear." There's no definitive word on pricing nor availability, but a brief search revealed that this thing can be had for around a C-note at a variety of online stores.

[Via TechDigest]

If you're cool with a circular gizmo flanking one of your ears, Callpod's Bluetooth earpiece is probably right down your alley. Aside from rocking a dual-microphone design, noise cancellation technology and multi-device pairing support, this headset promises to stay connected even if you stray 100-meters (give or take) from your mobile / computer. Additionally, you can count on 8-hours of talk time (300-hours in standby) to handle those all-night sobfests, and it's even firmware upgradable should the future hold some extras not yet available. If you're all ready to sign up, hit the read link and throw down your $119.95 -- Callpod says they'll be shipping soon.

[Via Uber-Review]