Light and compact the Bluetrek X3 Impact Bluetooth headset is ideal for outdoors, offering a talk time of up to 8 hours and stand-by time of up to 10 days. Designed for outdoor use, the X3 is splash, dust, and shock resistant. The control functions include volume up/down, last number redial, voice dial, call reject, answer/end, mute, call reject and call waiting. Dual color LED to indicate the status of charge, end of charge, low battery, stand-by and communication. Package includes 4 sizes of adjustable earbuds for a perfect fit. Also, 3 sizes of detachable metal ear hooks for either ear, simply hook the headset over your ear for quick, easy and comfortable wear.