Product Features:
Bluetooth Version: V4.0
Modulation method: GFSK, π / 4 DQPSK, 8 DPSK
The power supply voltage: 3.3 - 4.2 V
Support BT protocol:HFP v1.6 HSP V1.2,A2DP V1.6,AVRCP V1.4 DI V1.3
The working current: ≤30 mA
Standby current: < 50 uA
Temperature range: - 40 ℃ to + 80 ℃
Wireless transmission range: > 10 meters
Transmission power: support CLASS1 CLASS2 / adjustable CLASS3 maximum 8 DBM
Sensitivity: - 80dBm < 0.1% BER
Frequency range: 2.4 GHz to 2.480GHz
External interface: PIO, SPI, Audio in/out and PCM, USB
Audio performance: support for AAC, MP3, SBC, stereo
Audio signal to noise ratio: ≥75 dB
Distortion: ≤0.1%
Technical indicators:
1. Category: Active noise cancelling headphone
2. Output terminal: 3.5mm mini stereo plug( can choose the plate gold/plate nickel)
3. Power supply: lithium ion battery
4. Battery capacity: 250mAH
5. Working voltage: 3.7V
6. The maximum input power: 400mW
7. The maximum output power: 90mW
8. Noise level: 23db
9. Noise ratio: 50-1200hz
10. The signal to noise ratio(SNR): ≥85db
11. The working time: ≥30h
12. The noise reduction modes: the feedback of before and after combined with the active noise cancelling
13. Speaker diamater: Ф40mm
14. Speaker impedance: 32ohm
15. Speaker frequency response: 20 - 20KHz
16. Speaker sensitive: 115dB
17. Speaker type: Neodymium magnet high-end speaker
18. Beryllium material: pet corona material
19. Beryllium thickless: 19mil
20. Wire length: 1.2m
21. Wire material: tpe shielded wire
22. Earbuff material: Protein intradermal filling inert memory sponge.
