Bluetooth version: V5.0
Standby time: 300 hours
Talk time: 5 hours
Music time: 4 hours
Charging time: 1.5 hours
Bluetooth frequency: 2.402G – 2.480G
Charging compartment capacity: 300mAh
Earplug capacity: 50mAh
Communication distance: 10 meters
Supporting protocols: HSP, HFP, A2DP, AVRCP
Material: ABS + silicone
Charging compartment size: 6 x 2.5 x 2.5cm
Earphone size: 2 x 2cm

1. Model: T28
2. Bluetooth version: V5.0
3. Standby time: 300 hours
4. Talk time: 3.5 hours
5. Music time: 3 hours
6. Charging time: 1 hour
7. Bluetooth frequency: 2.402G-2.480G
8. Charging compartment capacity: 500mAh
9. Earplug capacity: 35mAh
10. Communication distance: 10 meters
11. Support agreement: HSP, HFP, A2DP, AVR CP

– Bluetooth version: v5.0
– Frequency range: 20-20000Hz
– Max. battery life: 3.5h
– Battery capacity: 300mAh (charging case); 40mAh (per earphone)
– Water resistance rating: IPX4
– Dimensions: 7.50 x 3.00 x 4.00cm

Bluetooth Version: 5.1

Battery Capacity: 45mAh

Capacity of Charging Case: 390mAh

Input Charging Standard: DC5V

Product Color: Black

★Charging time: 1.5H

★Talk Time: 4H

★Play Time: 3.5H

★Standby Time: 300H

Best Transmission Distance <1M

Maximum Transmission Distance: 10M

Impedance: 16Ω±15%

Sensitivity: 93dB

Frequency Response Range: 20HZ-20000HZ