|
Wearing style |
True Wireless stereo earbuds |
|
Ear coupling |
ear canal, closed-back |
|
Frequency response |
5 Hz to 21 kHz |
|
Transducer principle |
dynamic |
|
Transducer size |
7 mm |
|
Sound pressure level (SPL) |
110 dB (1 kHz/0dBFS) |
|
THD (1 kHz, 94 dB SPL) |
< 0.08 % |
|
Microphone principle |
MEMS |
|
Microphone frequency response |
100 Hz to 10 kHz |
|
Microphone pick-up pattern (speech audio) |
2-mic beamforming array |
|
Power supply |
built-in Lithium rechargeable batteries, 3.7 V earbuds: 55-72 mAh charging case: 400-420 mAh USB charging via USB-C socket of the charging case: 5 V |
|
Operating time |
9 hrs with rechargeable battery of the earbud (test conditions: iPhone within 1 m distance, Bluetooth AAC codec, playback of mixed music, volume level 50 %, no EQ settings); 27 hrs with rechargeable battery of the charging case |
|
Charging time of rechargeable batteries |
approx. 1.5 hrs |
|
Temperature range |
operation: 0 to +40 °C storage: –25 to +70 °C |
|
Relative humidity |
operation: 10 to 80 %, non condensing storage: 10 to 90 % |
|
Magnetic field strength |
earbuds: 64 mT charging case: 177 mT |
|
Weight |
earbuds: approx. 6 g each charging case: approx. 37 g |
|
Version |
Bluetooth 5.2 compliant, class 1, BLE |
|
Transmission frequency |
2,402 MHz to 2,480 MHz |
|
Modulation |
GFSK, π/4 DQPSK, 8DPSK |
|
Profiles |
HFP, AVRCP, A2DP |
|
Output power |
10 mW (max) |
|
Codec |
aptX®, AAC, SBC |
|
Device name |
CX True Wireless |
|
Number of active connections |
1 |