- product description:
- model:a9 pro anc fifth generation + smart screen "anc+ dual-mark enc+ in-ear detection light sense"
- color: white
- 1. chip: jerry 7003d8 noise reduction + light sensing in-ear detection
- 2. version: 5.4 [binaural call]
- 3. working frequency: 2.402-2.480ghz,
- 4. support protocols: a2dp/avrcp/hfp/hid/avctp/avdtp, and spp
- 5. transmission distance: 15m [barrier-free]
- 6.response frequency: 20～20000hz
- 7.speaker unit: Φf13 titanium film, 32Ω±15%, 7.118±3db 5mw
- 8.microphone: 2718 silicon microphone -42±3db
- 9.charging input standard: contact, dc4.75-5.25 v/600mah
- 10.battery type: 3.7v polymer battery 500mah with protection board (3c fast charging battery), headphone battery 30mah
- 11.charging time: 1h
- 12.headset working time: the measured 100% volume plays continuously for about 5.5 hours
