Soundpeats Soundsoul Sport Bluetooth Headphone Earphone (white) [Comfortable and Secure Design]: These Noise Canceling Earbuds include S/M/L ear tips and two types of different ear hooks to ensure a comfortable and secure fit for everyone. With specially designed ear hooks, you will never worry about the ear buds falling off in a gym or workout again. [Bluetooth 4.1+aptx]: Supports two connected devices simultaneously and allows to automatically connecting after paired successfully for the first time, high-fidelity stereo sound quality with aptx codec. The Headphones are compatible with most cell phones, iPhone and Android. [Sweat Resistant]: Built for your active lifestyle, the earbuds are rated IPX Level 4 and can withstand dripping sweat. Ergonomic design optimized for ultimate wearing comfort to match your active lifestyle like running, jogging, cycling, driving, camping, hiking gym exercise and other outdoor sports. [Music & Calls Control]: Wireless Bluetooth Earphones allow auto switching between music and calls. You can control all functions of music and calls easily via the buttons of Bluetooth headset. Built-in microphone enables taking hands-free calls while listening to music. [Long-Lasting Usage & Lightweight Design]: Up to 5 hours talk time / music time (Playtime varies according to volume level and audio content). With 175 hours standby time and 1-2 hours charging time. Since it has a super Light Weight Design, the net weight is only 3.17 ounces; you will feel nothing for gym and workout.