On sale! (normally $149) Listen on-the-move with the freedom of wire-free Bluetooth technology. The CKR55BT’s 11.8 mm drivers provide excellent sound quality in a comfortably sized in-ear design. The headphones are compatible with Qualcomm aptX and AAC codecs, ensuring stable and clear wireless transmission. Lightweight in-ear design creates strong sound isolation. The headphones feature in-line smartphone control with mic for managing music and calls and the cable-clip can be attached to clothing for a secure, stable wearing fit. A protective carrying case for safe storage is included.