TWS & Bluetooth 5.0 - The most advanced Bluetooth sound quality A2DP AVRCP HFP SBC - Wireless stereo sound for fast transmission without delay, no disturbance or tangles. Wireless range: 10 m. One step instant pairing, place the headphones in your ears and select them from your mobile phone's Bluetooth settings in one swipe. Both earbuds are connected. Compatible with iOS and Android. Also compatible with Bluetooth enabled tablets/laptops/PCs Powerful listening experience Maximum sound output 105dB with secure silicone seat. High basic power and long range compared to other models. IPX4 Standard - Splashproof & Sweat Resistant In Ear Headphones - Great for Workout, Running, Cycling, Gym and Outdoor Sports. (Not protected against immersion in water). Both earbuds come with adjustable silicone plugs that offer the user a secure and comfortable fit CHARGING ON THE GO - Defunc TRUE MUSIC TWS earphones provide 4 hours of battery life on a single charge. The charging case offers 2 full charges, total 12 hours. The charging case is 100% again in 1.30 hours with any fast charger. Contact Control - Increase / reduce the volume and change the song on the headphones with a few fingers without looking at your phone. You can also make calls and be heard by the built-in microphone