A40 specifications:
* Headphone main chip: AC8976A8 Jellyfish solution
* Seat charger main chip: SY7658
* Antenna: ceramic bipolar 3216
* Wheat: dual wheat: noise canceling silicon wheat
* Speaker: noise-canceling speaker/13mm/32Ω
* Headset battery: 40mAh
* Seat charger battery: 320mAh
* Support audio decoding: MP2, MP3, WMA, APE, FLAC,AAC, MP4, M4A, WAV, AIF, AIFC
* Listening time: 4-5 hours
* Talking time: 3 hours
* Charging time: 1 hour
* Speaker sensitivity: 98dB
* Signal distance: 15m
* Charging time: 1.5 hours
* Charging times: 3 times
Product features:
1.ANC + ENC noise reduction, dual-channel automatic noise reduction chipset, can eliminate excess noise from the external environment and ear canal, also noise reduction Mic, HD calling and reduce noise when you make a call.
2. Audio and video synchronization, game without sensory delay
3. Hall magnetic switch, open the lid automatically connected
4. Bluetooth 5.1 chip, stronger and more stable signal
5. Headset with 108 ° small angle of elevation design, wear no burden
6. Fingerprint touch control, tap the headset to complete a variety of functions such as noise cancellation switch
