Live freely without the hassle of constant charging. Bluetooth Neckband Wireless comes up with an inbuilt power bank in the storage box just to make sure that you never run out of power. These wireless Bluetooth earplugs are specially built to serve multiple functionalities and can be used in indoors as well as outdoors for normal-voice and video calls, video conferences, or to listen to your favorite music and podcasts.
Material: plastic + electronic components
Operating frequency range: 2400.0-24383.5mhz
Speaker impedance: 16ohms
Horn frequency response: 100Hz 20KHz
Acoustic structure: closed type
Sound quality: Lossless sound quality
Support protocol: HFP, HSP, A2DP, etc.
Sensitivity: <-82dbm, <0.1% BER
Music playback/talk time: 8 hours
Standby time: 400 hours
Bluetooth connectivity range: Bluetooth version 4.2