Smallest Truly Wireless Earbuds

Model name:H300

Name: TWS mini bluetooth wireless headphone earphone with charging box    

Function: Bluetooth, Microphone, Noise Cancelling   
Color: Black, White                                                 
Bluetooth Version: 4.2 ATS2823B                       
Speaker: 8mm   True copper ring                                                  
Operating range: 25m                                             
Charging time: 1.5 Hours                                           
Playing time: 2.5-3.5 Hours                                          
Standby time: 120hours                                         
Battery Case: 500mAh                                                                   
frequency : 2.4GHZ ,                                  
impedance : 16Ω                                      
Suitable for: all kinds mobile phone with bluetooth                                                                      
Main feature :                                                         
1. charging box.                                                      
2. has 2*50mAh battery and 500mAh charging box. It is a large battery capacity          
3. Certificate : CE / ROHS , BQB