30 Ft (9 M) Bluetooth Range/ Plays Up To 12 Hours/ Up To 3 Hours Battery Charging Time/ Vibrations For Incoming Calls/ Sweat And Weather Resistant/ Made From Materials Engineered To Be Comfortable And Light/ Designed For All-Day Wearability/ Adjustable To Conform To Your Neck For A Comfortable Fit/ Multi-Function Button/ Black Finish