Specifications:
Model: Es-t6
Product type: In ear true wireless bluetooth headset
Channel system: Dual channel
Maximum transmit power: 8db,
Bluetooth solution: Airoha ab1 536u
Bluetooth version: Bl uetooth 5.0
Support bluetooth protocols: A2dp, avrcp, sppp, hfp, hsp
Bluetooth operating frequency: 2402ghz - 2.480ghz
Battery capacity of charging chamber: 2500mah
Receiving sensitivity (typ): - 90dbm
Bluetooth effective distance: ≤ 15m
The best call distance (tbr):<20cm
Audio signal to noise ratio s/n: ≥ 95db
Frequency response: 20hz~20khz
Distortion: ≤ 1%
Rated power: 3 mw
Maximum power: 5 mw

Package list: 

Headset*1