TOPK High Definition Wired Earphones (3.5mm) - £4 with voucher, sold by TOPKDirect @ Amazon

Excellent Sound: Built in high-performance speakers for extended frequency range, lower distortion, high performance and noise isolating ear tips eliminate ambient noise. Provide perfect listening pleasure for music, video or phone calls.
With mic : Built in a mic and an in-line controller in the cord which ，answer or hang up/reject calls, hanging up the call without taking the phone out of the pocket.
In-Ear Design: These wired earphones adopt the ergonomic and comfortable in-ear design that fits your ears perfectly, not only can prevent the wired earbuds from falling off in your daily relaxation or doing some sports but also can be worn for long periods of time without pain;This earphone is Equipped with 3 different sized rubber earbuds, you can select the best fit for your personal ear shape.
Broad Compatibility: TOPK 3.5mm earbuds wired are widely compatible with 3.5mm devices, for example, Android Smartphones and tablets, Windows laptop PC, Macbooks, PS5/4, Xbox and music players with aux headphone socket, iPhone SE/ 6/6s/6 Plus/6s Plus/5/5c/5s, iPad Mini, iPad Air, iPod touch 5,iPod Nano 7, Galaxy S 10 S9 S8 S7 S6 S5, etc.
What You Get: Wire Earphone*1, We respond within 24 hours. If you are not satisfied with our headphones, please let us know and we will offer you a full refund or product exchange.