Review on Sony WIC400/L Wireless Behind-Neck In-Ear Headphones, Blue by Stoyan Stankov ᠌

Still good for sports Got pros: They are convenient, weigh little, hold the battery for a long (very long) time, display the battery level (on the phone), and have a long range. Charge quickly. Has some cons: Weak sound, no depth of sound, no noise cancellation from the outside, and I guess there is no good isolation of the reproduced sound (so that others do not hear).