You will get 12 Bluetooth headset as pictured.
The main parameters:
Bluetooth version: 5.2
SNR: 97dB
Rated power: 3mw
Maximum power: 5mw
Frequency response range: 20Hz～20KHz
Impedance: 32Ω±15%
Headphone sensitivity: 111dB ±3dB
Headphone Distortion: <5% CRY6151
Bluetooth distance: ≧10M
Horn specification: 16MM
Sensitivity: -42dB
Headphone battery type: polymer battery
Headphone battery capacity: 110mAh
Headphone charging current: 100MA
Headphone charging time: 1H
Music playing time: 16H-20H (depending on the volume)
Talk time: 16H-20H (depending on the volume)
Support protocol: A2DP/AVCTP/AVDTP/AVRCP/HFP
Single ear mode button function
Power-on prompt tone: switch between Chinese and English, default English
Switch voice: double-click to switch language after booting
Power on: Press and hold the touch button for 3 seconds to power on
Shutdown: Long press the touch button for 5 seconds to shut down
Volume Plus: No
Volume reduction: no
Next song: Double-click the touch button to switch to the next song
Previous song: Triple-click the touch button to switch to the previous song
Play/Pause: Click the touch button to play and pause music
Answer/Hang up: Single click to answer an incoming call, double click to hang up during a call
Reject calls: Long press for 1.5 seconds to reject calls
Siri: Long press the touch button for 1.5 seconds to wake up the Siri function
LED lights flashing
Power on: the green light is on first, green and white are flashing in pairs
Shutdown: The green light flashes 4 times and turns off the light
Pairing: green and white pair flash
Successful connection: light off
Music playing: light off
Music paused: light off
Incoming call: white light flashes slowly
During a call: light off
Low battery: slow flashing white light
Charging: white light is always on
Fully charged: the white light is off when fully charged