Bluetooth Active Noise Cancelling Headphones On Ear, Hi-Fi Stereo Headset, Foldable Wired/Wireless, Soft Memory-Protein Earmuffs, Built-in Mic 699d Wireless ANC Headphones for Travel Work TV Phones/PC

ACTIVE NOISE CANCELLING – Internal precision noise reduction headphones circuitry effectively eliminates up to 85% of background noise,such as avoids airplane cabin noise, city traffic or a busy office, makes you focus on what you want to hear,enjoy your music, movies and videos. NOTE: ANC works best at reducing consistent Low Frequency Background Noise, like engine sounds, metro noises, large crowds etc. The Active Noise Canceling function can work well both in wire and wireless mode.
Hi-Fi STEREO SOUND: Dual 40mm large-aperture driver units and Bluetooth 4.1 Tech provide more stable transmission speed, lower latency and better audio output.The high quality of headphones ensure a high quality auditory experience featuring rich bass, as well as powerful and balanced sound.
WIRELESS AND WIRED MODE AS YOU WISH:These ANC headsets can support Wireless and Wired Mode to meet your needs everywhere.Build-in high performance rechargeable safe battery provides up to around 20Hrs playing time (Bluetooth Mode)/ 30Hrs playing time(noise canceling mode), and that also depends on the sound volume when using. You can take the headphones out using wireless mode or stay at home or offices to use the wired mode to enjoy the active noise canceling functions and never power off.

Amazon.com Price: $38.99 (as of 03/07/2020 14:09 PST- Details) & FREE Shipping.

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Category: Bluetooth Noise cancelling headphones

Wireless Version: V4.1

Modulation method: GFSK, π / 4 DQPSK, 8 DPSK

Support BT protocol:HFP v1.6 HSP V1.2,A2DP V1.6,AVRCP V1.4 DI V1.3

Wireless transmission range:<10 m

Transmission power: support CLASS1 CLASS2 / adjustable CLASS3 maximum 8 DBM

Frequency range: 2.4 GHz to 2.480GHz

Working voltage: 3.7V

Maximum output power: 90MW

Noise level :18-20db

Signal to noise ratio (SNR): ≥ 90db

Power supply: 280mA lithium battery

Rated operating time:≥12h

Noise reduction modes: dual-microphone noise feedback

Speaker diameter: Ф40mm

Speaker Impedance: 32Ω

Speaker frequency response: 20Hz – 20KHz

Speaker sensitivity: 115dB

Noise level: ≤-78dBA

The dynamic range: ≥ 78 dBA

Distortion THD: ≤ 0.1%

Stereo crosstalk: ≤ -52 dBA

Wire length: pvc wire, 1.2m

Packing Content

1x Bluetooth Noise Cancelling Headphone
1x 3.5mm Audio Cable
1x Mirco USB Charging Cable
1x Airplane Adapter
1x Packing Bag
1x User Manual

Warranty

Our 6qqd product includes a 45-day money back & 12 month warranty

ACTIVE NOISE CANCELLING – Internal precision noise reduction headphones circuitry effectively eliminates up to 85% of background noise,such as avoids airplane cabin noise, city traffic or a busy office, makes you focus on what you want to hear,enjoy your music, movies and videos. NOTE: ANC works best at reducing consistent Low Frequency Background Noise, like engine sounds, metro noises, large crowds etc. The Active Noise Canceling function can work well both in wire and wireless mode.
Hi-Fi STEREO SOUND: Dual 40mm large-aperture driver units and Bluetooth 4.1 Tech provide more stable transmission speed, lower latency and better audio output.The high quality of headphones ensure a high quality auditory experience featuring rich bass, as well as powerful and balanced sound.
WIRELESS AND WIRED MODE AS YOU WISH:These ANC headsets can support Wireless and Wired Mode to meet your needs everywhere.Build-in high performance rechargeable safe battery provides up to around 20Hrs playing time (Bluetooth Mode)/ 30Hrs playing time(noise canceling mode), and that also depends on the sound volume when using. You can take the headphones out using wireless mode or stay at home or offices to use the wired mode to enjoy the active noise canceling functions and never power off.
ERGONOMIC DESIGN: To fit everybody’s head and ears perfectly, the noise cancelling headphones equips adjustable head bands and fits cushioned ear pads by protein skin.Besides, its’ lightweight brings no burden for your head. It’s foldable headband design can save desktop space for you.(Warm Tip:Please take off the headphones every 1-2 hrs to get your ears relax and comfortable.)
STABLE BATTERY LIFE AND DURABLE HEADPHONES.12 month warranty and quick response & friendly customer service from 699d brand.

Specification: Bluetooth Active Noise Cancelling Headphones On Ear, Hi-Fi Stereo Headset, Foldable Wired/Wireless, Soft Memory-Protein Earmuffs, Built-in Mic 699d Wireless ANC Headphones for Travel Work TV Phones/PC

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