Another participant in our recent A/B test of over-ear bluetooth headphones: Harman / Kardon BT. Nice design, expensive materials, good sound, decent battery life, but comfort could be better, the housing is quite microphonic, cables have non-standard plugs and you can’t use them while charging. Alas, no ANC either. More details coming in a few days in our review of Valco VMK20 that will include a comparison with a few other bluetooth headphones incl. the Harmans.
Technical data:
Design: closed, over-ear headphones
Drivers: dynamic
Driver diameter: 40 mm
Driver impedance: 32 ohms
Bluetooth transmission range: 2.4 – 2.4835 GHz
Bluetooth modulation: GFSK/4-DQPSK/8-DPSK
Transmitter power: <3 mW
Bluetooth support: 2.1 + EDR, A2DP v1.2, A VRCP x1.0, HSP v1.2 and HFP v1.5
Audio codecs: AAC, AptX, cVc
Battery life: 12 hours
Charging/operating voltage: 5/3.7 VDC
Charging time: approx. 2 hours
Frequency response: 16 – 20,000 Hz
1.4 m cable
