|
Wearing style |
Bluetooth® around-ear, closed-back |
|
Ear coupling |
circum-aural |
|
Transducer principle |
dynamic |
|
Transducer |
32 mm |
|
Frequency response |
18 Hz to 22,000 Hz (-10 dB) |
|
Sound pressure level (SPL) |
108 dB (1 kHz/0 dBFS) |
|
THD (1 kHz, 100 dB SPL) |
< 0.3 % (1 kHz, 100 dB SPL) |
|
Microphone principle |
MEMS |
|
Microphone frequency response |
80 Hz to 6,000 Hz (-3 dB) |
|
Microphone pick-up pattern (speech audio) |
dual omni-directional microphones 2-mic beamforming array |
|
Power supply |
built-in rechargeable lithium-polymer battery: 3,7 V ⎓, 600 mAh |
|
Charging time of rechargeable battery |
approx. 2 hrs |
|
Operating time |
30 hrs (music playback via Bluetooth with ANC activated) |
|
Temperature range |
operation: 0 °C to +40 °C charging: +10 °C to +40 °C storage: –20 °C to +60 °C |
|
Relative humidity |
operation: 10 to 80 %, non condensing storage: 10 to 90 % |
|
Weight (headphones) |
approx. 238 g |
|
Magnetic field strength |
1.9 mT |
|
Version |
Bluetooth 5.0 compatible, class 1, BLE |
|
Transmission frequency |
2,402 MHz to 2,480 MHz |
|
Modulation |
GFSK, π/4 DQPSK, 8DPSK |
|
Output power |
12.6 mW (max) |
|
Profiles |
HSP, HFP, AVRCP, A2DP |
|
Codec |
aptX, aptX LL, AAC, SBC |
|
Device name |
HD 450BT LE-HD 450BT (Bluetooth Low Energy only) |
|
Number of active connections |
2 |