Item No.: K11R165
.Bluetooth version: Bluetooth 4.2 +ERD  
.With AUX output  
.Support agreement : A2DP、AVRCP、HSP、HFP  
.Frequency range: 2.4GHz-2.48GHz  
.Support bluetooth hands-free calls  
.Material:ABS+rubber coating  
.With bluetooth BQB Certification  
.Battery:3.7V 100mah Lith-ion Battery   
.USB Charging time: 2 hours@5V/1A  
.Duration time: about 7 hours  
.Operating range: 10M  
.With can be removed 3.5 mm audio connector, USB cable  
.LED lights：green light for work：red light for charging indicator light  
.Low battery tips