Product Information:

Transmission range: 10 meters
Function: call function, support music, multi-point connection
Bluetooth protocol: 4.0
Channel; stereo
How to use: head-mounted
Whether single or double ear: bilateral stereo

Battery capacity: 500mAh
Talk time: 8h
Music playback: 10h

Packing List:

Bluetooth headset*1

Product information:
Product model: ZL B21 headset
Bluetooth solution: Bluetooth V5.0, high-definition call surround sound quality
Signal to noise ratio: 98dB
Frequency response: 60Hz-20KHz
Speaker: 32Ω
Playing time: 10-15 hours
Charging time: 2-3 hours
Communication time: 15 meters without barriers
Headphone battery capacity: 800 mA

Size Information:
Size: Color box size: 66*40.5*49.5mm

Packing list:
A set of earphones + Android charging cable + Chinese and English manual *1

Product information:

Transmission range: 10m
Functions: noise reduction, power display, call function, voice control, music support, others
Bluetooth protocol: 5.0
Channel: stereo
Usage: headwear
Mono and binaural: bilateral stereo
Color: dolomite white, new face powder, elegant black

Packing list:

Headset * 1

Product Information:
Article No.: BT00010
Transmission range: 10m
Features: Call function, voice control, support for music, multi point connection, FM radio
Processing customization: Yes
Bluetooth protocol: 5.0
Channel: Stereo
Usage: Headworn
Monobinaural: bilateral stereo
Suitable gift giving occasions: birthdays, festivals, trade fairs, advertising promotions, employee welfare, anniversary celebrations, business gifts, opening ceremonies, awards commemorations, public relations planning
Color: 01-Black Red, 02-Black Earth Gold, 03-Black Rose Gold, 04-White Earth Gold, 05-White Rose Gold

Packing list: 

1 * Bluetooth headset

Product information:

Product name: Bluetooth headset
Use: Headset
Features: call function, support music, multi-point connection
Transmission range: 15 meters
Endurance: 10 (hours)
Battery capacity:360 mAh
Charging time:2 hours
Sound channel: stereo
Color: Silver,Black,Pink,Blue,Green

Packing list:

Bluetooth headset x1