Chip: JL7006F8 Function: 2Mic ENC / Active Noise Cancellation / IPX5 Waterproof / Hall Switch / Reset Button Bluetooth Version: V5.2 Earbuds Battery: 40mAh*2 Charging Case Battery: 420mAh Buds Charging Time: 50 minutes Case Charging Time: 2 hours USB Port: Type-C Charging Case Dimension: 60*52*27mm Buds Dimension: 34*24*24mm Wireless Working Range: 10M (without obstacles) Speaker Size: 10mm*2