Specification: 
· Bluetooth version: V4.2 TWS couple speakers
· Bluetooth support protocol: A2DPV1.2, AVRCPV1.4, 
  HSPV1.2 HFP1.6
· Wireless frequency range: 2.402 GHz ~ 2.483GHz
· Audio frequency range: 20Hz ~ 20KHz
· Speaker: ¢ 45 4Ω 5w
· Microphone: Highly flexible capacitive mic 4X1.5mm
· Battery Type / Capacity: Lithium Battery / 1000mAH / · · Seiko Protection Board
· Charging time: 1.5H
· Charging voltage: DC 5V
· Talk time: 5.5H
· Play time: 6H (80% of volume)
· Standby time: 500H                    

 Feature:
· TWS Wireless Bluetooth Input
· Hand-free function
· Play/pause
· Vol.-/Previous song
· Vol.+/Next song
· Modulation: GFSK
· Bluetooth distance: 10m
· Waterproof IP66 , Anti-dust, Anti-drop option,
  unique design 
· Outdoor tough speaker 
· Enegy Saving, Battery Capacity Display 
· Bluetooth connect and cancel pairing