Audio-Technica Wireless Headphones- Black ATH-SR30BT

Exceptionally pure audio of Sound Reality in a wireless design
Exclusively designed 40 mm drivers for outstanding sound quality
Internal battery provides an astounding 70 hours of continuous use on a full charge
Housing's dual-layer isolation structure keeps the electric circuitry separate from the acoustic space for optimal phase and transient response
Compatible with AAC and SBC codecs
Lightweight, fold-flat design for easy portability
Mic and controls built into the earcup for convenient handling of calls, music playback and volume adjustment
Includes 30 cm (1.0') USB charging cable
Available in charcoal grey (ATH-SR30BTBK) and natural grey (ATH-SR30BTGY)
type Closed-back Dynamic
Driver Diameter 40 mm
Frequency Response 5 “ 35,000 Hz
Sensitivity 99 dB/mW
Impedance 32 ohms