♫【 Easy Operation】Pick up 2 headsets from charging box They will connect each other automatically; Once you take the earbuds out of the charging case，it will turn on and pair with each other automatically，when put in the charging case，it will automatically turn off and charing until fully charged. (Please remove protective film from earbuds before use). | ♫【HI-FI STEREO SOUND】Adopt professional Bluetooth 5.0 chipset that produce incredible sound quality with deep bass and crystal clear treble; built-in MEMS microphones with noise cancellation for you to enjoy crystal-clear hands-free calls and voice assistant in noisy circumstances. | ♫【Mini Portable Power Bank】 This bluetooth earbuds can last for over 4 -5 hours playtime on a single charge. While on the go the portable charging case power can last up to 60 hours (recharge up to 4-5 times full charge for the wireless headphones). You can go out for fun without worrying about battery shortage, your needs are met from the start of the day to its end. | ♫【SNUG FIT ERGONOMIC DESIGN】Ergonomic and lightweight design fit comfortably and snuggly in your ear; 3 sizes of ear tips option provide individualized fit and comfort for all-day wearing with no pain; they fit securely, stay firm in place even for workout or running. | ♫【1 Years-Warranty】1-year replacement for any defective and 30-day return policy.