Edifier NB2 Pro True Wireless Earbuds Features:

• Noiseless, Music Only: For Hybrid Noise Cancellation, the internal and external 2-way MICs precisely capture and reverse the noise, keeping away any disturbance from the outside.
• Immersive Panoramic Surround Sound Effect: Breaking through the acoustic structure and innovatively applying panoramic 3D technology, the Edifier NB2 Pro True Wireless Earbuds delivers a better immersive experience, offering a mobile and private cinema to you.
• Adjustable Ambient Sound: In the Noise Cancellation mode, the ambient sound can be heard by simply tapping the earbud; the volume and range of the ambient sound can be adjusted by App. You will not miss any important information outside.
• Upgraded Voice Call Quality: With a brand-new ENC algorithm, the dual-MIC provides better noise cancellation. Even in the noisy streets or subways, the ambient noise can never disturb your whispery voice during calls.
• 15min Fast Charging for 2hrs Listening: The fast-charging function is enabled for Edifier NB2 Pro True Wireless Earbuds and 15-minutes charging provides 2hrs playback. The extended playback time can be as long as 32hrs, good for even 400 songs or 15 movies.
• Quick and Better In gaming mode: The latency can be low as 80ms. Sync of pictures and sounds ensures a quick response for gamers on the battlefields.
• AAC Audio Decoder for Nature Sound: With an additional AAC audio decoder as well as a 10mm complex diaphragm, the unit brings balanced tri-frequency and high resolution to restore more details of the music.
• Perfect for Outdoors: No matter it is rainy or sunny, winter or summer, the earbuds with IP54 dust and waterproof guarantee a free and enjoyable journey.
• Automatic in-ear Detection: The internal infrared sensor intelligently detects the status of earbuds, automatically triggers the noise cancellation mode, and plays/pauses the music.

Specification:

• Bluetooth version: V5.0
• Effective distance: 10m
• Playback time: Noise-cancellation on: 7+18h; Noise-cancellation off: 9+23h
• Frequency response: 20Hz-20KHz
• Sound pressure level: 94±3dB
• Impedance: 24Ω
• Audio codecs: AAC,SBC
• Battery capacity: 60mAh (earbuds); 500mAh (charging case)
• Charging time: about 1 hour (earbuds); 2 hours (charging case)
• Charging port: USB Type-C