Bose Noise Cancelling Headphones 700 features and specifications Colour: Black, Luxe Silver Battery life: Up to 20 hours Battery charging time: Up to 2.5 hours Quick 15-minute charge: For up to 3.5 hours Microphones: 8 (ANC & Voice Pickup ) Bluetooth range: Up to 9 m (30 ft) Bluetooth version: 5.0
