True Wireless Stereo 5.0 Earbuds IPX7 Waterproof Version: Bluetooth 5.0 Waterproof Special Edition Wireless Single Enhanced Built-in MIC 5H Music Playing Time (Medium Volume) Support Agreement: SPP / HFP / A2DP / AVCTP / HID Sensor Touch Comfortable Fit True Wireless Earphone Capacity: 2x3.7V / 50mAh Earphone Charging Time: About 1 hour Charging Base Charging Time: About 2 hours 2000mAh Charging Bar Frequency: 2.40GHz~2.48GHz Sensitivity: -92dBm Bluetooth Distance: 10M Single Earbud Weight: 4.5g