Audiosharp AS1125 Lightweight Wireless Bluetooth 4.1 Stero Sweatproof Hands-free Headphones with Built-in Microphone for iphone ipad LG Samsung Galaxy Note Sports Gym (Discontinued) High-technically, the newest Bluetooth 4.1,bring top speed & power saving & enhanced transmission,standby time up to 200 hours, perfectly works with most smart phones. Revolutionarily,No heavy control box,leading a new trend in bluetooth sports headset.Without any control,a T-light ear tips which can against the headset falling out. Crystal clear sound and Advanced NR noise reduction, providing you the best Bluetooth experience. Voice prompt of English/Chinese/French/Spanish,keep you aware of the headset state. EQ adjustment. Press the Vol(-) and Vol(+) Button simultaneously to adjust Bluetooth EQ mode.