<ul><li>Bluetooth 5.1 Technology and Superior Stereo Sound: Features with the advanced Bluetooth 5.1 technology, i27 Wirless earbud support HID HFP A2DP AVRCP, which provides instant pairing and stable transmission without interruptions. The range is up to 15 meters away. Bluetooth headphones with bio-carbon fiber composite diaphragm and polymer TPU of 11mm large dynamic unit, powerful low frequency, delicate and unique mid-high frequency, to create a beautiful sound quality.</li><li>IP7 Super Waterproof and Designed for Sports: The sports wireless earbud adopts a waterproof and breathable membrane to achieve an IP7-level structured waterproof design, which can be used even if it is immersed in a water depth of 1 meter for 30 minutes. And the internal nano-coating to airborne moisture from damaging the components. Our running headphones use an ergonomic and flexible ear-hook design, so that your earbud will not fall during strenuous exercise such as running or cycling.</li><li>Dual LED Digital Display Charging Case: Wireless earphones have a LED digital display, it can display the quantity of electricity directly and clearly with opening the lid. The number represents the percentage of charging cases remaining power. For the right or the left Bluetooth earphones, while the earbud is chariging, the led bars of the earbud will flash, once the earbud are fully charged, the led bars of the earbud have no light flashing.</li><li>42 Hours Playtime and Type-C Fast Charge: These wireless Bluetooth earphones can provide up to 6 hours of play time on a single charge. Lightweight charging case supports 7 times of recharging for Bluetooth earbud, gives up to 42 hours continuous music time. The upgraded Type-C charging port can provide faster and safer charging. With Type-C quick charge, it only takes 1.5 hrs to charge the case.</li><li>One Step Pairing and Smart Touch Control: Remove the earphones from the charging case,they will be activated and pair with each other automatically. Then open your devices Bluetooth to search i27 to connect. After the first successfully connection, the sport earbud will automatically connect to the last pairing device when next time use. These wireless headphones are equipped with a smart touchpad, with a fingertip touch to complete the corresponding operation, simple and convenient.</li></ul> Bluetooth 5.1 Technology and Superior Stereo Sound: Features with the advanced Bluetooth 5.1 technology, i27 Wirless earbud support HID HFP A2DP AVRCP, which provides instant pairing and stable transmission without interruptions. IP7 Super Waterproof and Designed for Sports: The sports wireless earbud adopts a waterproof and breathable membrane to achieve an IP7-level structured waterproof design, which can be used even if it is immersed in a water depth of 1 meter for 30 minutes. And the internal nano-coating to airborne moisture from damaging the components. Our running headphones use an ergonomic and flexible ear-hook design, so that your earbud will not fall during strenuous exercise such as running or cycling. Dual LED Digital Display Charging Case: Wireless earphones have a LED digital display, it can display the quantity of electricity directly and clearly with opening the lid. The number represents the percentage of charging cases remaining power. For the right or the left Bluetooth earphones, while the earbud is chariging, the led bars of the earbud will flash, once the earbud are fully charged, the led bars of the earbud have no light flashing. 42 Hours Playtime: These wireless Bluetooth earphones can provide up to 6 hours of play time on a single charge. Lightweight charging case supports 7 times of recharging for Bluetooth earbud, gives up to 42 hours continuous music time. The upgraded Type-C charging port can provide faster and safer charging. With Type-C quick charge, takes 1.5 hrs to charge the case. One Step Pairing and Smart Touch Control: Remove the earphones from the charging case,they will be activated and pair with each other automatically. Then open your devices Bluetooth to search i27 to connect.

SGNICS for T-Mobile REVVL V+ 5G Bluetooth 5.1 Headphones with Dual LED Digital Display 42Hrs Playtime, IP7 Waterproof Running Headphones with Earhooks & Mic