Key Specifications: Noise Cancellation: Multi-mode Active Noise Cancellation (ANC) technology. Battery: Lasts up to 50 hours with the charging case. Charging: Supports fast charging; 10 minutes of charging provides 4 hours of listening. Resistance: Dust and splash resistant with IP54 standard. I want 100 SAR for them, and the earbuds are new and have no issues.