Crusher Wireless delivers powerful, dual-channel haptic bass. And with up to 40 hours of battery life, you can enjoy days of Bluetooth® listening before needing to plug in. Stereo haptics deliver strong, directional bass to each ear, bringing your media to life. Custom-tuned audio drivers provide a powerful and refined sound for all types of music. Up to 40 hours of battery life let you dial up the bass for long listening. Type: Over-Ear, Connection Type: Bluetooth® or Wired, Battery Life: Up to 40 Hours, Rapid Charge: 10 Min = 3 Hours of Play, Noise Isolation: Passive, Driver Size: 40mm, Weight: 275g. Colour: Black