Enjoy dynamic sound with the Pioneer SE-MS7BT Bluetooth Headphones in black. These headphones connect to your device via Bluetooth 3.0 or the included cable, and they can wirelessly pair with up to eight devices. 40mm drivers deliver a wide range of sound, and the CCAW voice coil reproduces hi-res frequencies up to 40 kHz when using the cable. An integrated microphone lets you take calls on your headphones, and built-in buttons give you control over your music and phone calls. The SE-MS7BT's wide headband promotes comfort, and the curved earpads are designed to create an even seal around your ears for an improved fit and better noise isolation. The SE-MS7BT's built-in battery enables up to 12 hours of playback and talk time, up to 200 hours of standby time, and recharges in approximately four hours via the included micro-USB cable. The audio cable can be used when the battery runs out.