The Audio Technica ATH-C200BTWH is a pair of in-ear headphones designed to provide excellent Bluetooth® wireless sound quality at a remarkable value. With their "open" style design, these earbuds combine powerful 12 mm drivers with specially crafted sound tubes to control airflow, resulting in full-range audio with enhanced low-frequency performance. The open design also allows some ambient noise to pass through, ensuring you remain aware of your surroundings. Featuring silicon housings for a secure and comfortable fit, these headphones come equipped with an in-line microphone and controls, enabling you to answer calls, adjust volume, and control music playback directly from your smartphone or other devices. The design conveniently situates the mic and controls for easy access, while the battery case, located on the upper back, can be attached to your shirt collar with the included clip. The internal battery powers the headphones for up to 9 hours of continuous playback (with 200 hours standby) and can be recharged using the included 30 cm (12") USB charging cable.