Audio-Technica at-WLA1 Wireless Headphone Adapter Cable

Allows wired A2DC-compatible in-ear headphones to be used wirelessly.
Bluetooth wireless technology with in-line mic and controls for answering/ending calls, controlling music & video playback and adjusting volume on connected devices.
Internal battery provides up to 7 hours of continuous use (200 hours on standby) on a full charge.
Supports high-quality aptX and AAC audio codecs.
Includes 30 cm (1') USB charging cable, ear hooks and pouch; Includes clip for attaching battery pack to shirt collar; Compatible with in-ear headphones that attach to cable via A2DC (Audio Designed Detachable Coaxial) connectors.