Nokia E3102 TWS Bluetooth Earphones Stereo Wireless Headphones with Microphone HD Call Waterproof Touch Control Gaming Headset

Features:
Upgraded BT5.1 chip, more stable and faster connection, stronger -interference ability, low delay.
Adopt 13mm dynamic driver and noise isolation in-ear design, you will listen to music with rich highs, crisp mids and clear, balanced bass. 
The LED display screen shows the battery power of the charging case in real time, no need to worry about power shortage.
ENC environmental noise reduction technology provides clear calls.
The E3102 is designed to give you the to switch between single-ear and double-ear seamlessly.
Smart touch control, easy to play/pause, adjust , switch previous/ song, answer/ up, etc.

Nokia Essential True Wireless Earphones E3102
Wearing stype	True wireless earphones
Ear coupling	Ear canal
Frequency response	20Hz to 20kHz
Transducer principle	Dynamic driver
Transducer size	13mm
Sound pressure level(SPL)	94dB±3dB
Impedance	16Ω±15%
Microphone principle	MEMSx2
Power supply	Built-in Lithium rechargeable batterires 3.7V  Left earbud 40mAh Right earbud 40mAh Charging case :350mAh
Operating time	Up to 5 hrs (Music playback via A2DP) with rechargeable batteries of earphones. Up to 20 hrs with rechargeable battery of the charging case
Charging time	Earphones approx 2 hrs Charging case : approx 2 hrs
Ingress protection(earbuds)	Anti-dust and splash proof (IP44)
Weight	Left earbud :approx 4g Right earbud :approx 4 g Charging case :approx 32g
Volume control	Yes
Bluetooth
Version	Bluetooth specification version 5.1
Profiles	HSP,HFP,AVRCP,A2DP
Effective range	GFSK,π/4  DQPSK.8DPSK
Transmission frequency	2402MHz to 2480MHz
Output power	3mW(max)
Supported Audio Formats	SBC