Specification:
Color: Black / White / Red / Gold (optional)
Shell material: ABS
Applicable models: Suitable for all phones and smart devices with bluetooth
Bluetooth version: 4.1
Protocol mode: A2DP (3D sound), AVRCP (music player), HFP (then hang up)
Tone: Yes (English)
Transmission frequency: 2.4GHz
Bluetooth effective distance: 10m (barrier-free situation)
Microphone: Yes
One drag two: yes
Whether binaural: single ear (self applies to right ear)
Battery: 60mAh (built-in lithium battery)
Power input: DC 5V
Key function: On / off, pause / play, connect / hang up
Bluetooth connection: long press the power button for 5 seconds, enter the bluetooth mode, use a mobile phone to search connection
Headphone weight: 5g
Product Size: 5 x 2 x 2cm

Features:
-Intelligent and long lifespan;
-Good sound quality,noise reduction ,strong signal;
-Ear comfortable, carrying no pressure