NEXFOUR QuietZone A19-M18 ANC Noise Cancelling Headphones

NEXFOUR QuietZone (A19-M18 ANC) Noise Cancelling Headphones

Experience premium acoustic engineering and superior power efficiency with the NEXFOUR QuietZone series. Designed for seamless connectivity, high-fidelity sound, and all-day comfort.

Key Specifications:

• Chip: Jerry JL7026, Bluetooth V6.0
• Supported Protocols: A2DP, AVRCP, HFP, HID, AVCTP, AVDTP, SPP
• Transmission Range: 15 meters (no obstacles)
• Sensitivity:
• Frequency Response: 20 ~ 20000Hz
• Speaker Unit: Φ40mm
• Microphone: 4013 Round Mic, -39±2dB
• Battery: 3.7V Li-polymer Battery, 300mAh with protection board
• Charging Time: 1-2 hours
• Playback Time: Around 30 hours of continuous playback at full volume (actual test)

Product Details:

• Brand: NEXFOUR
• Origin: China

Available Colors: Black/White | other color MOQ is 2000pcs | NO ANC $4.88