Function

IPX-4 Waterproof

Up and down song switch
Voice volume +/-
Bluetooth call
Last call back
Titanium coated film true copper ring speakers
Intelligent echo cancellation
Low battery alarm
Intelligent voice prompts
Multi-point function
IOS battery capacity display
Metal magnetic

Specification

Speaker:10mm
Frequency response：20-20KHz
bluetooth chip：CSR8635
Bluetooth version：v4.1
Signal to noise ratio：≥80db
Battery capacity：55mah
Input voltage：DC5V
Input Current：≥500mA
Operation range：10m
Standby time：150hrs
Music time：3-4hrs
Charging Time：1-2hrs
Sensitivity：-42DB±3DB
Impedance：2.2KΩ