HP 8X229A6 Poly Blackwire 3225 stereo headset USB-C 3.5mm adapter 32 Ohm 7.40 ft cable accessory

Poly Blackwire 3225 stereo headset

The Blackwire 3225 is an on-ear stereo headset designed for enterprise users who handle calls on a PC, mobile phone or tablet. It weighs little, folds flat and ships with a leatherette ear cushion for all-day comfort. A flexible microphone boom lets each wearer set a custom fit. The 32 Ohm drivers deliver hi-fi stereo sound and PC wideband audio for clear conversations.

USB-C and 3.5 mm wired connections

Connectivity is limited to a wired USB Type-C plug, a 3.5 mm mini-phone jack and the included USB-C to USB-A adapter. No wireless protocol, Bluetooth or battery is present, so the headset works only while physically attached to a host device. The 7.40 ft cable sets the maximum reach from the user to the connected system. Dynamic EQ adjusts audio automatically but requires the host to supply power and processing.

32 Ohm impedance drives compatibility

The 32 Ohm rating determines how loudly the headset plays from a given source without an external amplifier. Low-output devices such as some tablets or older laptops may not drive the earcups to sufficient volume for noisy environments. Buyers who need higher sensitivity or plan to use the headset with very low-power outputs should verify that their equipment can deliver adequate voltage across 32 Ohms.