Technical specifications
MPN
Device
Type
TWS earbuds with wireless charging
Form factor
Chipset
Special features
Environmental Noise
Cancelling technology
(ENC)
Charging case
Touch controls
Voice recognition
Battery indicator
Protection rating
Built-in microphone
Driver
RMS power output
Frequency
Impedance
Sensitivity
Microphone
Form factor
Directivity
Frequency
Impedance
Sensitivity
KTE-250
case
In ear
Jieli 5.3/AC6976D
Included
With wireless technology
Smart touch
Siri and Google Voice Assistant
compatible
Single LED on charging case
IPX4 water resistant
For taking calls
10mW
20Hz-20kHz
32
97dB±3dB
Built-in
Omnidirectional
59dB
450k
-42dB±3dB
Connectivity
Connection type
A2DP, AVCTP, AVDTP, AVRCP, HFP,
Profiles supported
Wireless RF frequency
Wireless range
Battery
Single earphone
battery
Charging case battery
Charging connection
type
Wired charging rate
Wireless charging rate
Charging case +
Charging time
Earbud battery only
Charging case battery
only (wired mode)
Charging case battery
only (wireless mode)
Number of charging
case cycles before the
battery runs out
Run time
Earbud battery only
Earbud total playtime,
including case cycles
Battery standby time
, V5.3
®
Bluetooth
SPP, SMP, ATT, GAP, GATT,
RFCOMM, SDP, L2CAP
2.402GHz-2.480GHz
Up to 33-49t
1
50mAh, lithium battery
360mAh, lithium battery
Type-C and wireless charging
5V=1A, 5W
5V=0.3A, 1.5W
3.5 hrs total
earbuds
1.5 hrs total
2 hrs total
2 hrs total
3
Up to 7
hours (50%
volume)
Up to 21 hrs
About 200 hrs
2
3