The desktop charging base is furnished in an attractive silver and black color scheme. At 4.75 by 4.25 by 4.0 inches, the Plantronics Voyager 510 is on the bulky side, but the rounded edges make for an attractive look overall, and we prefer it over the GN 6210. Easily accessible, the headset rests in a charging cradle on the front of the base. To make and end a call on either your landline or your cell phone, you can lift the headset out of the cradle, as well as press the call control buttons on the headset or the top of the base. Alternatively, if you're using the handset lifter (see below), the same steps automatically raise your landline phone off the cradle. Other keys on the base consist of a volume control, a power switch for the handset lifter, and buttons for adjusting the frequency so that it matches your landline phone's. Additionally, a red indicator light indicates whether the base is on and a blue light flashes when the headset is in use. On a final note, we found that once the base is connected to the power cord, the landline phone and the headset lifter comprise a somewhat messy setup.
The handset lifter attached easily to our landline phone with adhesive strips. We had to experiment with the position, but once we got it in the correct place, it worked without incident. Plantronics wisely included a switch on the lifter that adjusts the height to which if lifts the phone.
We tested the Plantronics Voyager 510 with a. The pairing process was easy to understand, and we were up and running in no time. Sound quality for cell phone calls was mostly good, though with a somewhat hollow quality at times. Callers asked if we were using a headset, but that's nothing out of the ordinary. Previous Plantronics headsets picked up a noticeable amount of wind noise, but the 510 came with a windscreen ear tip and mic cover that provided some improvement. The headset came with a fair amount of features, including noise canceling, last-number redial, voice dialing, call reject, and the ability to transfer calls between the headset and a cell phone. The 510 has a rated battery life of six hours of talk time and promised standby time of just more than four days.