2021 new neckband sport bluetooth headset

Product Type: In-Ear/Neck Hanging/Neck Wearing/Magnetic

Bluetooth version: V5.0

Receiving frequency range: 2.402GHz-2.480GHz

Effective receiving distance: about 20 meters

Music playback: true stereo, super bass and good sound quality

Music playback time: about 40 hours

Support external TF card (Micro sd card)

Support voice assistant wake up (Siri)

Talk time: about 40 hours

Standby time: about 1000 hours

Polymer lithium battery: about 3.7V/350-400mAh, with protective plate (low capacity can also 

be customized)

Charging time: about 2.5 hours

Speaker specifications: φ10mm 32Ω copper ring heavy bass

Audio output power: 25mW * 2

Ear shell: magnetic pair suction

Microphone: -42dB

Signal to noise ratio: ≥95dB

Color: black\gun color\red or customized