1.Bluetooth 5.0 Technology and One-Step Auto Pairing: With Bluetooth 5.0 technology, the sport earphones provide stable, fast connection with your device and ensure wide compatibility, low latency and wider Bluetooth range. The wireless sport earhook earbuds are equipped with innovative receiving technology, which allows both earphones to receive signals from the phone, and the sides of the earphones can be used separately. 2.LED Power Indicator Automatic power on interconnection:Automatic power on interconnection, memory pairing, pick up and listen. When the headset is taken out of the charging box, it will automatically power on and enter the interconnection step. After 1-2 seconds, it will be connected and then open the phone to search for the headset. Normal pairing can be performed. If it has been paired, it will automatically remember that the pairing is successful 3.Improved Earbuds for Sports: Unlike any ordinary in-ear bluetooth earphones. Our soft, flexible and secure ear hooks are designed for headphones, so they wont fall off even during intense workout. The lightweight snug, reducing stress on the ear and reducing pressure on the ear. Comfortable to use for long periods of time. These wireless sport Bluetooth ear buds are for gyms, working out, running and driving. 4.IPX4 waterproof and Compatibility : IPX4 waterproof and compatible, protecting in-Ear bluetooth ear buds from sweat, splashes and light rain. Note: The waterproof features of this product are not suitable for heavy rain or showers. 5.Noise Cancellation: The headphones feature an integrated biocomposite membrane driver for sound analysis, enhancing deep and dynamic bass, high-resolution and realistic reproduction of raw music, powerful bass, rich mid and resonant frequencies, balanced reproduction of low to mid to high frequencies.