Overview:
Superior technology delivers superior sound: Enjoy premium audio quality with powerful bass, clear mid-range and highs, and crystal-clear vocals, creating your own personal bubble of high-quality acoustics.
Never-Drop Design – Ergonomic and designed not to fall. Ultra-lightweight with silicone earbuds ensures comfortable long-term wear.
Backup Power for Your Devices:
With a 2000mAh capacity battery, the charging case can provide extra power to charge your smartphone or other mobile devices. It serves as a reliable emergency power source when needed.

Specifications:
Size: 11.3 cm * 9.2 cm * 4.5 cm
Weight: approximately 120g-140g
Color options: F9-5 digital black, F9-5 digital white
Transmission range: 10 meters
Features: battery display, voice control, call functionality, supports music, multi-point connection
Bluetooth protocol: 5.0
Channel: Stereo
Bluetooth version: 5.0 (Binaural call)
Supported protocols: A2DP, AYRCP, HCEP, HSP, SPP
Operating temperature: -10°C to 55°C
Charging voltage: 5V-500mA
Headphone speaker: φ8mm
Headphone battery capacity: 50mAh
Storage box battery capacity: 2000mAh
Transmission distance: >10m
Talk time: 4-5 hours
Playback time: 4-5 hours
Headphone charging time: 1 hour
Charging case time: 2 hours
Compatible with: all Bluetooth-enabled devices and hands-free systems

Package Contents:
1 x Bluetooth Headset

Specification
Size: 11.3 cm * 9.2 cm * 4.5 cm
Weight: about 120g-140g
Color: F9-5 digital black, F9-5 digital white
Transmission range: 10 meters
Function: battery display, voice control, call function, support music, multi-point connection
Bluetooth protocol: 5.0
Channel: Stereo
Bluetooth version: 5.0 (Binaural call)
Support protocols: A2DP, AYRCP,
HCEP, HSP, SPP
Operating temperature: -10 °-55 °
Charging voltage: 5V- 500MA
Headphone speaker: φ 8mm
Headphone battery capacity: 50mAh 
Storage box battery capacity: 2000mAh 
Transmission distance:> 10m
Talk time: 4-5 hours
Playtime: 4-5 hours
Headphone charging time: 1 hour
Storage box charging time: 2 hours
Support system: all Bluetooth-enabled devices and hands
machine.