Tip: Please clear the transparent adhesive under the earphone before using. Basic Parameters ★ Earbuds Communication range: 10m(without obstacle) Battery capacity: 43mAh(Single earphone) Charging time: approx. 1.5 hours Standby time: approx.150 hours Communication time: 3.5 hours Battery type: Li-ion Input parameter: 5V=100mAh Wireless connection: Bluetooth 5.0 ★Charger case Battery capacity: 800mAh Charging time: approx. 3.5 hours Standby time: approx. 4 months Battery type: Li-ion Input parameter: 5V=500mAh Output Parameter: 5V=150mAh Product Description ❤ 25H Battery Life.Secures music with you for a long journey. One top-up means 4 hours playing. The exquisite carry case offers you with 5.5 extra top-ups,which extends the battery life to 25 hours.With 4 battery life LED indicators on the charging case. ❤ IPX5 Sports Waterproof With industrial level IPX5 waterproof,you do not need to worry about sweat when doing exercise even in outdoor.Choose proper eartips to gain stable wearing experience in various situations. ❤Advanced Bluetooth 5.0. Stable & Fast Connectivity Provide higher sound quality, more stable connection and faster transmission speed. ❤ Only 3.9g lightweight, magnetic case lid. ❤ Voice Assistant Support Xiaoai & Siri & Google Assistant. ❤ HAYLOU GT1 PRO is able to resist sweat. Along with 3 sizes ear caps which fit well. you can enjoy indoor/outdoor sports heartily. Package Includes 1x pair HAYLOU GT1 PRO Wireless Earbuds 1x Charging case 1x Micro USB cable 3x Eartips 1x User Manual After Sales Policy We will provide a replacement or repair service in the following cases: 1.Send a wrong product. 2.Products have quality problems. 3.You receive a fake one. 4.Water damage such as swimming, shower are NOT COVERED. 5.Charging box cover damage due to user behaviour/ accident are NOT COVERED.