Shokz OpenFit Air 2 Open-Ear True Wireless Earbuds

Lighter. Smaller. No compromise.OpenFit Air 2 features a compact, featherlight build with a refined ear-hook curve for a secure, comfortable fit that holds all day. Like all Shokz open earbuds, it keeps you aware of your surroundings while your music plays on - whether you're mid-hike, mid-commute, or mid-anything.SpecificationModelSHOKZ T520Speaker type Air conduction transducerFrequency response20~20kHz(±10dB)Speaker sensitivity97.5dB ± 3dBAudio codecs supportedSBC, AACMicrophone sensitivity-38 dB ±1dBBattery Li-ion batteryBattery capacityEarbuds: 56mAh (min.) Charging case: 600mAh (min.)Charge voltage5V±5%Battery lifeUp to 8 hours of music time with a single charge, up to 36 hours with charging case Up to 6 hours of calling time with a single charge, up to 26 hours with charging caseStandby timeEarbuds: Up to 1.5 days In charging case: Up to 180 daysCharge timeCharge the earbuds with the charging case: 60 minutes; Earbuds + charging case charging time: 100 minutesQuick chargeA 10-minute charge gives 3 hours of battery life (music)Bluetooth versionBluetooth V6.1Wireless range10mCompatible profilesA2DP, AVRCP, HFPFrequency band2402MHz-2480MHzSweat resistanceEarbuds: IP55Charging case: IP54WeightEarbuds: 7.2g±0.2gCharging case: 46.4±2gTotal weight: 60.8±2gExterior materialEarbuds: Plastic, silicone, stainless steelCharging case: Plastic, stainless steel