Firstsing Mini TWS Stereo True Wireless Bluetooth Earphones DSP Noise Reduction Headset with battery charging box

Bluetooth:V4.2
Chip:AIROHA AB1526
Battery:35mAh + 200mAh
Frequency Range:2.401GHZ～2.482GHZ
Operation:Class 2
Mode:headset/handfree/A2DP/AVRCP
Operating range:5~10 metres
MP3 Playing Time:2 hours
Standby Time:70 hours
Charging Time:2 hours
Using DSP noise reduction. Clear and pure sound quality for talking, even in a noisy environment can effectively shield the surrounding noise. No need to increase voice to let the other person hear clearly, no more loud roaring, always being elegant with style.
The earbuds’ small size makes it fit easily in any ear. Appearing like a small dots in your ears, your wireless headphones will be almost invisible. With zero wires or cords, it’s easy to store and use. These Bluetooth earphones are impressively technologically-packed for their extreme small size. You’ll be amazed at how nice it is to have a tiny earbuds. Enjoying music, listening to podcasts, and making calls on the go is a whole new experience with the world’s smallest Bluetooth stereo cordless earbuds.
With the unique dual-earbud conductive portable charging system available only with Bit Charge Bluetooth earbuds, you'll never run out of batteries. Not only can you recharge your earbuds multiple times but you can also charge other devices without a wall plug. The magnetic plug and charge design houses the earbuds so you don't lose them and keeps them fully charged for extended talk time and worry-free use.