These earbuds lightweight and small size makes this sports earphones suitable for all day wear. Earbuds are perfect for hiking, running and being on the go. These wireless earbud have a 10 meters length transmission distance, which is convenient and easy to use.

50mAH 501215 plus protection board polymer battery makes this earphones supports 3 hours listening time

The Bluetooth 4.2 headset is stereo design, which brings you excellent music all the time.

• Intelligent noise reduction, Compatible mobile phones, Compatible with tablet
• A7 TWS Wireless Earphones Mini Twins Stereo Bluetooth Headset with Charging Box for Emergecy
• Invisible in Ear Ultra-Small Sports Wireless Bluetooth 5.0 Stereo Headset Mini Earphone with Microphone Hands-free Calling.
• Compatible with most Bluetooth-enabled devices. This will connect automatically with a phone paired previously.
• Built-in A2DP /AVRC audio processing system, can be a very good eliminate Noise and echo,Perfect for Stealth Listening or watching at work.

Specifications:

• Bluetooth chip and Bluetooth version: Blue 5.0 low power core
• Bluetooth protocol: HSP1.2, HFP1.6, A2DP1.3, AVRCP1.5
• Power Input: 3.2V-4.2V
• Output: 30mW
• Load condition (Load): 32Ohms/Phi8
• Rated power (Power): 74mW
• Headphone battery: single side 70mAH, battery type 501215 plus protection board polymer lithium battery
• Charging box battery: 500mAH, battery model 502035 plus protective plate polymer lithium battery
• Charging power: headphone 5V/120mA, charging box 5V/320mA
• Transmission distance: 10 meters
• Frequency: 2.4GHz-2.48GHz
• Talk time: up to 4 hours
• Listening to the song time: up to 4 hours
• Standby time: about 150h