Key Features:
Bluedio T Energy The Neckband Ear buds with Tailored Hold and High-Fidelity Sound from BLUEDIO, the Choice of 20 Million+ Happy Users.
This product is 8mm drivers pump out high-fidelity, skip-free audio. Bluetooth 4.1 streams smoothly, up to 33ft from your device.
TN Active Noise Cancelling Sports Bluetooth Earphone/Wireless
Key Features:
Foldable And Portable, 195-Degree Rotary Design, To Save More Space And Easy To Carry And Support Micro SD Card(Up To 32G) And FM Radio
Φ57mm Ultra-Big Speaker, Brings Amazing Bass For You. But Its Impedance Is Only 16Ω, Easy To Drive By Smart Phones, Tablets And PCs.
Bluetooth
Key Features:
Bluetooth Version: 5.0
Transmission Frequency Bluetooth Range: Up To 10 M (Free Space)
Bluetooth Profiles: A2DP, AVRCP, HSP, And HFP
Frequency Response: 20Hz-20K Hz
Audio Resolution: Up To 24bit@48KHz
Driver Units: 57mm X 2
Impedance: 160
Total Harmonic Distortion (THD):0.3%-3% (THD)
Sound Pressure Level (SPL):118dB
Bluetooth Music/Talk Time Charging Time:About 1000 hours