Shell material: ABS
Applicable Model: Suitable for all mobile phones and smart devices with Bluetooth function
Bluetooth version: 4.1
Protocol modes: A2DP (3D audio), AVRCP (music player), HFP (connected to the phone)
Prompt tone: Yes
Transmission frequency: 2.4GHz
Bluetooth Effective distance: 10m (without barrier)
One after two: yes
Binaural or Monaural: Monaural (self-adapting to right ear)
Battery: 50mAh (built-in lithium battery)
Power Input: DC 5V
Key functions: on / off, pause / play, answer / hang up the phone
Bluetooth connection: long press the power button for 5 seconds to enter to the Bluetooth mode, use the phone to search and connect.
Features: portable, small and stable, smart and lasting; good sound quality, less noise, strong signal; comfortable to wear.
Product Size: 5 * 1.7 * 2cm