Sennheiser PX 360 Portable, folding around-the-ear headphones at Crutchfield
PX 360 - Sennheiser PX 360 - Audiofanzine
Amazon.com: Replacement Battery for SENNHEISER 450 Travel 550 Travel MM 400 MM 400-X MM 450 MM 450-X MM 500-X MM 550 MM-550-X PCX 360 BT PX 210 BT PX 310 BT PX
Amazon.com: yan AC Charger Power Supply Adapter Cord for Sennheiser PX 360 BT PXC 360 BT Headset : Electronics