Features: Delivers powerful bass, mellow midrange, and clear treble, reproducing your music vividly to power your workout. Headphones are equipped with high quality ENC noise reduction mics. it can ensure high-quality call performance by isolating your voice from surrounding noise. Each ear buds offers up to 8 hours of listening time on a single charge, allowing you to enjoy a total of 72 hours of music with the charging case. The LED display on earphones accurately display the remaining power of charging case Features with the advanced Bluetooth 5.3 chip technology, it provides instant pairing and stable transmission without interruptions. With a stable connection distance of up to 15m. Features ear hooks design prevent of falling off when running, but is also comfortable to wear. Can be used in home, office and during your exercise. Specifications: Material: ABS, PC Color: Black Bluetooth Version: 5.3 Bluetooth transmission distance: 15m Battery Type: Lithium battery (included) Charging Time: 1-1.5hr Duration of use: 4-8 hours Call duration: 7 hours Standby time: more than 90 days Notes: Due to the light and screen setting difference, the item color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 2 x Earbuds 1 x Charging Case 6 x Ear caps 1 x USB Charging Cable (power adaptor not included) 1 x User Manual