Realme Bud Air 2 Neo is the cheapest true Bluetooth wireless headset on the market with active noise cancellation ANC, its active noise cancellation 25dB is very impressive. The sound quality has Elastic bass and extended treble. IPX5 waterproof. Features support 10 minutes fast charging available for 3 hours is very convenient. Rocky recommend to bass lover who need cheap active noise cancelling bluetooth headset.