XG16 In-Ear Long-Life Couple Two-In-One Bluetooth Wireless Earphones Two Pairs Of Earphones 1. One box contains 2 pairs of earphones of different styles, enjoy two kinds of listening experience 2. 14.2MM kinetic resonance large diaphragm, high-frequency diaphragm enhancement, coaxial double driving force, double the surging and shocking listening experience 3. Zero pressure fit, 3D bionic design, fit 99 percent of the auricle 4. Directional sound transmission technology, create an independent sound zone that is not disturbed by the surrounding environment, and refuse sound leakage 5. Bluetooth V5.4 is not picky about devices, and multiple models can be connected 6. IPX5 waterproof and sweatproof, extending service life 7. Both left and right ears have separate touch-functions, you can switch songs, answer and hang up the phone at will, and wake up the voice assistant Parameters: 1. Bluetooth solution: Bluetooth V5.4 2. Product speaker: 10 cm speaker 3. Product chip: BLUETRUM 5656c 4. Standby time: 120H+ 5. Working time: 5 hours, the charging case can charge the earphones 2 times + 6. Charging time: about 1 hour 7. Communication distance: barrier-free 10-15 meters 8. Earphone battery capacity: 30mAh 9. Charging box battery capacity: 300mAh (with IC protection board) 10. Accessories: 4 earphones, a charging case, Type-C data cable, an instruction manual, a pair of ear caps