Bluetooth headphones， Letoo Wireless Bluetooth Headphones with Mic 4.1 Earbuds Sport Stereo Headset， Noise Canceling Earphones[Product Information]- Bluetooth 4.1 Connection: Easy and fast pairing with smart phones， tablets and other Bluetooth enabled music devices. Ensure more stable signal transmission and low energy consumption. Allow two Bluetooth smart phones to connect simultaneously， Powerful bluetooth signal with up to 33feet operation distance
- Premium Sound Quality: The advanced CSR chip with A2DP technology transmits high quality， Richer and More Natural sound. our wireless earphones allow superior audio performance in music and calls.
- Innovative AVRCP Technology: Sport Bluetooth headphones allow convenient access to operate your headsets. Easy to achieve multifunction like music playing， pause/replay， volume control and etc. The thread is not long， it is just suitable length around your neck.
- Comfortable & Secure Fit Ear Hook: The uniquely designed ear hooks fit in your ears snug and the ear tips block out a good amount of excess noise. Stay in place and not fall out as if running.
- Extended Battery Life: With 1-2 hours recharge can be used for up to 8 hours playing time， Li-Polymer Batteries with protection circuit board， power off automatically after fully charged. ensures up to 200 hours long stand-by time.
