Item Type: Earbuds Material: ABS Weight: Approx. 103.0g/3.6oz Bluetooth Version: 5.0 Power Input: DC5V Earbuds Battery Capacity: 3.7V/50mAh (Li-ion Battery) Talk/Play Time: About 5 hours Charging Time: About 1 hour Charging Box Battery Capacity:3.7V/350mAh (Li-ion Battery) Support Protocol: HSP/HFP/A2DP/AVRCP Sensitivity: 1205dB Frequency Response Range: 20-20000Hz Impedance: 16 Package List 2 x Earbuds 6 x Earphone Cap 1 x Charging Box 1 x Charging Cable 1 x Manual 1The power level is clear at a glance, and the power of the charging box is displayed in real time, clearly visible at 25%, 50%, 75%, and 100%. 2It is comfortable to wear for sports, silicone material is skinfriendly and nonallergenic, IPX5 waterproof, no fear of sweat, enjoy sports. 3Efficient transmission efficiency, realizing a lower latency experience for you during calls and videos, just like facetoface communication. 4360 waterproof, dustproof and waterproof, not afraid of sports sweat, even if it is washed by rain, it will not be damaged. 5Single endurance is 5 hours, low power consumption is the core technology, and the base cabin design is adopted to the large capacity charging box.