It is a cost-effective headset.

Work quality:

The casing still has a bit of a plastic feel, but the earphones have a good texture. They come with three different types of plugs, which can be used to change the sound quality and sound effects. They are pretty good for daily use. No problem to use.

Battery life:

Very good. I use it every day. It took about a month to charge. It is very comfortable and fits well on the car keychain. It does not stick to any place. Very portable and comfortable to wear.

Sound quality:

All three frequencies are medium, the treble is clear, the midrange is sufficient, the bass has a good sense of volume, and the sound field is sufficient. Duanduo is a very good headset at this price. It has a strong sense of body, almost no delay, the sound effect is very clear, and the 3D feeling is very strong.

Headphone parameters:

NetEase Cloud Music Oxygen Lite version, true wireless earphones using Bluetooth 5.0 link, more stable wireless bandwidth, lower power consumption, fine 7mm dynamic coil Laba, SBC audio Decode, take out and automatically power on and pair, smart touch operation, support voice assistant, IPX5 waterproof, lightweight 5.1g per ear, 400mAh large capacity battery compartment. It can be charged 4 times, and a single earphone can be used for no less than 4.5 hours of listening. Three colors are available: obsidian gray, silver salt white, and berry red.