Wireless noise-canceling headphones with 40-hour playtime and Hi-Res Audio support. - Model Name: Q20i - Features: Wireless Noise Canceling - Driver Size: 40mm - Playtime: 40 hours - Sound Quality: Hi-Res Audio compatible - App Support: EQ adjustment possible with the soundcore app - Connectivity: Can connect to two devices simultaneously - Transparency Mode: Yes Please consider this item, as it has been stored at home. Thank you for looking.