Featuredescriptionmodelbaseus bowie e9typetrue wireless earphones (tws)color optionswhite / blackmaterialabs + pcbluetooth versionv5.3communication distanceup to 10mbattery (earbuds)40mah eachbattery (case)400mahmusic timeabout 5 hours (70% volume)music time with case25–30 hourscharging timeabout 1 hour (type-c wired charging)frequency response20hz – 20khzcharge interfacetype-cwaterproof ratingipx5compatibilityall bluetooth-enabled devicesspecial featuresdual-mic noise reduction for clear voice calls, touch control, dual-channel low latency (0.038s), baseus smart-connect, baseus app supportdesignergonomic, lightweight, and comfortablewarranty3 months replacement warranty