Air-S4 Earphone Bluetooth Wireless Headset Earphone Sport Headphone with Charging Bin - Black

• Adopting the latest Bluetooth V5.1 connection, high-fidelity sound quality and stable performance

• Built-in microphone, support hands-free phone conversation

• With ergonomic design, mini and lightweight, comfortable to wear

• Easy to play/pause music and answer/hang up phone calls by touching the control 

• Built-in 200mAh charging bin, easy to charge the earphone on the go, long standby time and using time

• Magnetic charging method design, just put the earphone into the charging bin, convenient to charge

• Great for running, hiking, cycling, car driving, business occasion, etc, enjoy superb sound quality instantly

Specification:

• Bluetooth version: V5.1+EDR

• Bluetooth protocol: A2DP1.3/HFP1.6/HSP1.2

• Voltage: 5V

• Chipset: Bluetrum 5376 

• Shell material: ABS+PC

• Charging time: 1 hour

• Bluetooth distance: 10m-15m

• earphone capacity: 30mAh*2

• Standby time: 240Hours

• Play/Calling Time: 2-2.5 Hours 

• Charging box capacity: 200mAh

• Speaker size: ? 13mm

• Impedance: 320 ?

• Rated power: 3mW

• Maximum power: 5mW

• Frequency response: 20hz- 20Khz

• Charging time of charging box: 1.5-2 Hours

• TWS Headphone weight: 7g

• Headphone size: 3.1*1.6*1.6cm

• Gross weight: 95.5g

Product operation instructions: 

• 1. Click touch to play or pause

• 2. Double-click touch to increase or decrease the volume

• 3. Three clicks touch to switch up and down

• 4. Press touch and hold 3 seconds to activate Siri

• 5. Double press to answer an incoming call or hang up, press and hold 3 seconds to reject the call.

• 6. Power on when pulling out of the charging box

• 7. Long press the touch button to switch the machine

Precautions: 

• 1. The earphones should be stored in a dry environment, to avoid oil, water, moisture, and dust from affecting product performance.

• 2. Avoid using stimulus, organic solvents, or items containing these ingredients to clean the earphone.

• 3. The use of earphones should be correct as per the specification, pay attention to the influence of the environment on the earphones. In order to ensure the smooth connection, please keep the distance between the earphones and phones within 10 meters.

• 4. If the earphones are failed to connect or with poor connection, please do not take apart the earphones or the accessories on your own. Please note that we are not responsible for man-made mistakes.

• 5. Regarding charging earphones, please use the standard

• USB cable or pointed charging cable from us to charge the earbuds.

• 6. Please keep your earbuds' battery fresh for normal use.