1. Driver: 15 mm
2. Resistance: 32 ohms
3. Bluetooth version: Bluetooth v5.0 + EDR, Jerry 5.0 solution
4. Bluetooth frequency: 2.4 GHz
5. Power Level: Class II
6. Output power: 30 mW
7. Bluetooth distance: 15 ~ 20 meters barrier-free
8. Frequency response: 20-20000 Hz
9. Operating voltage range: 3.0-4.2V
10. Microphone sensitivity: -42 dB
11. With A2DP / AVRCP High-quality stereo audio transmission and remote control protocol
12. Powerful noise reduction circuit (active noise reduction)
14. Charging time is about 1 hour (Power indicator: red light is on, full charge: Red light is off (blue light is on).)
15. Product size: 53 × 44 × 21 mm
16. The net weight of the product is about 32 g
17. Playback time about 150-180 minutes
18. Standby time is about 48 hours
19. Battery capacity 35 mAh (charging compartment 350 mAh)
20. Power supply for charging: DC5V power supply [Lighting interface] (computer usb port, mobile phone charger, car charger)
Gross weight: 120g
Package Size: 10 * 10 * 3.5 cm
Vsdtk product color: white
Standard: headset + charging compartment + charging line + manual + box + anti-loss line
How the lamp works on the charging unit:
1. Two lamps for the left ear and right two lamps for the right ear, when put the headphones with the charger, the lamp will be “on.
2. When both headphones are charging, the lamp will turn off.
3. When the power of the box is low, the fourth lamp will hold the flash.
Q: is there a lamp on the earphone if it holds the flash while listening to music?
A: the lamp just blinks when pairing and while charging, it will turn off when listening to music
How to use VSDTK headphones:
1, press either on the earphone at one point to answer / hang up
Phone, play / pause music.
2, press one earphone 2 points of volume-, 3 points the next song,
Press another earphone, 2 points + volume, 3 points of the last song.
3, press and hold the headphones for 3 seconds to wake up "SIRI"