Frequency-Adjustable Headset


* Bluetooth V4.1 Low Energy + EDR
* Supports A2DP, AVRCP, HFP, HSP profiles
* Ergonomic design and suitable for use in either ear
* Used as a normal headset to connect mobile phones or play music
* Used as a sound amplifier by a built-in DSP system for audio processing
* Supports sound frequency adjustment on App
* Powered by a rechargeable Lithium Polymer battery