Deep, immersive sound, improved eq-best-in-class performance for wireless headphones. Connectivity Technology: Wired/WirelessLatest Bluetooth technology for easy connectivity and seamless audio/video syncs. Wireless range up to 9 m (30 feet)Advanced microphone system, HD voice for clear calls in windy or noisy environments.Recharge Time 3.0 HoursUp to 15 hours play time with rechargeable lithium-ion battery,Ear cushion:9.6 cm H x 7.4 cm WSwitch between two Bluetooth devices so you can watch a video while staying connected to your smartphone
