Main Benefits
Fast and stable connection with Bluetooth 5.3
Wireless headphones with total freedom of movement
Integrated microphone for clear calls
Comfortable ergonomic in-ear design
Easy to use: remove from the case, connects automatically
Technical Specifications
Model: SLY-40
Bluetooth Version: 5.3
Range: up to 10 meters
Format: In-ear
Microphone: Yes
Frequency response: 20Hz – 10KHz
Impedance: 32 ohms
Battery and Charging
Earphone battery: 25mAh
Case battery: 200mAh
Battery life:
Up to 10 hours at high volume
8 to 12 hours at medium volume
Charging time: 1 to 1.5 hours
Power input: DC 5V
Voltage: 3V ~ 4.2V
How to Connect
Remove the earphones from the charging case.
Activate Bluetooth on your device.
Search for “Sumexr 40” in the list of available devices.
Select and connect.
Package Contents
1 Pair of SLY-40 Bluetooth Earphones
1 Charging Case
This product is ideal for those looking for wireless Bluetooth 5.3 earphones with a microphone, good battery life, and excellent value. Perfect for daily use, calls, music, and videos.
