TWS Noise Canceling Wireless Earphones Bluetooth HD Call Airpodding Pro 4 In-Ear Sport Headphones Hi-Fi Stereo Headset1) Can support both IOS and Android devices, as well as any device that has Bluetooth connect (laptop etc.) 2) Very short latency. Almost no delay for sound transmission from the device. 3) Quick connect. pro4 connects in less than 2 seconds upon turning on Bluetooth connection. 4) Good battery life. Can use up to 4 hours continuously. The charging case can charge the earphones around 3-4 times. A full charge for charging case can last for whole day usage. 5) Supports touch and gestures.