The Motorola H300 represents Motorola's idea of low-end wireless headset: relatively small device using standard AAA batteries as power source, achieving incredible battery times at a price that's reduced due to the lack of rechargeable battery and a charger for it in the box that contains the headset itself, a small user guide and a single Energizer Alkaline battery.
The headset has rather simple design with rectangular form with short boom microphone, as it should get a whole AAA battery inside. Its dimensions are average but it's not the case with its weight (25 grams / 0.88 oz.) that leads it to the category heavy for a Bluetooth headset, mainly because of the battery inside.
Its front side is made of grey glossy plastic and has metal blue decorative surface over it. The back is done of black matte plastic with rubber around the earpiece. We didn't like that the decorative part on the front easily catches fingerprints and ruins the rather stylish design.
For operation with the headset you have three keys: a pair of volume buttons on the top and the bottom, either of which can be assigned as Volume Up depending on the ear used and a call key. The volume keys are almost completely flush, while the Call Button is slightly raised and you can feel where it is. All keys are hard to press, but with good feedback.
The back houses the microphone, the earpiece and the earhook. The earpiece is encircled with rubber but it's relatively big and doesn't have in-ear design. The earhook in the middle can be rotated at four steps, which helps for easier attaching to the ear open it, put it on, and press it to close.