Audio-Technica ATH-DSR9BT Pros&Cons Pros  Premium build AptX and AAC Good battery life Cons  Price-to-performance ratio No noise cancellation Audio-Technica ATH-DSR9BT Specs Impedance: 38Ω Driver size: 45mm Frequency response: 5 Hz ~ 45 kHz Sensitivity: 97dB / mW Battery life: Up to 15 hours (1000 hours standby) Support Codec: aptX HD, aptX, AAC, SBC Packaging  Audio-Technica … Continue reading Audio-Technica ATH-DSR9BT Headphones Review