folded: 17 ( l ) x 13.5 ( w ) x 3.5 ( h ) ABS Bluetooth V 4.2 10m visible distance supports playback from smartphones, tablets or most other Bluetooth compatible audio devices built-in microphone supports call pick-up folding headband with deluxe padded on-ear headphones non-integrated 1m audio input cable included internal, rechargeable lithium polymer battery recharges via USB cable ( included ) presentation box: 13.4 ( w ) x 7 ( d ) x 14.4 ( h