Avantree Bluetooth 5.0 True Wireless Earbuds with Portable Charging Case, Sweatproof Sport TWS Earphones, 18H Playtime in Ear Headphones for Running, Jogging, Treadmill Workout, Exercising - TWS105 EASY TO USE: Even for the Non-Techie. Intuitive user interface without complicated set up procedures. Simple 1-click to power on and connect to your device to start listening to music. To power off and automatically charge just replace earbuds into charging case. STABLE CONNECTION: Anti-interference technology avoids disruptions to your music from nearby wireless "noise", while the latest Bluetooth 5.0 chipset provides for optimum stability and smooth streaming. Feel free to roam further with these true wireless earbuds - can reach up to 49 feet without skipping a beat! WELL-BALANCED AUDIO & DUAL-CHANNEL VOICE CALLS: Featuring lossless technology that produces great sound with full bass and crystal clear treble, these earbuds deliver true high-fidelity music. Advanced chipset supports full dual channel audio on voice calls for the most natural sounding conversations. The mono channel earbuds from yesteryear are a thing of the past! IDEAL WORKOUT COMPANION: Sweat-proof design and a non-slip silicone sleeve make these perfect for even the toughest workouts. CHARGING CASE FOR EXTENDED PLAYTIME: No need to worry about the battery life of these compact earbuds. One full charge provides up to 3 hours of continuous play time. Charging case can fully charge earbuds numerous times so you can enjoy up to 18 hours of total play time. Apple iPhone, iPad Android smartphone or tablet (e.g. Samsung, Huawei, Google) Not recommended for taking phone calls in noisy environments (on train, bus etc.) Not recommended for use with navigation software on Android phones. Not recommended for listening to online audiobooks on Android phones. Not recommended for watching videos as you may notice audio latency Not recommended to connect devices without volume control as earbuds cannot adjust volume Bluetooth version: 5.0 Support profiles: HSP, HFP, A2DP, AVRCP Operational range: up to 10 meters, Class II Charge voltage: DC 5V / 0.5-2A Charging time: About 2 hours Play time: up to 3 hours Talk time: up to 4 hours Earbud size: 15.3*20.3*30mm Earbuds weight: 10.86g Charging case size: 55*25*35mm Weight with charging case: 45g Avantree TWS105 USB charging cable Total 3 sets of ear tips User guide