Latest Upgrade Bluetooth 50 True Wireless Earbuds with Charging Case Waterproof Earbuds 30 Hours Playtime TWS Stereo Headphones Builtin Mic Earbuds Premium Sound with Deep Bass for SportRunning

Features: Stable Connection: Bluetooth 5. 0 low power consumption, a more stable connection and zero transmission delay. Premium Audio and Voice: Rich, music enjoyment and clear microphone phone calls. 24-Hour Work Time: 4 hours for a single charge and 20 hours of backup power from charging case. One-Step Pairing: Instant connection once open the charging case, auto connects with the last-paired device. Lightweight and Portable: The mini charging case is easy to put in your pocket. Enjoy music no matter where you are. Specifications: Bluetooth Standard: V5. 0 Operating Range: 33 feet/10 meters (No obstacles between) Supporting Protocols: A2DP/HFP/HSP/AVRCP Charging Time: 1. 5 hours (ear buds); 2 hours (charging case) Talking/Playing Time: about 4 hours (Varies according to volume level and audio content) Charging Voltage: DC 5V Battery Type: Li-polymer Package Contents: 1 pair of Wireless Earbuds 1 x Charging Case 1 x Micro USB Cable 1 x User Manual