The BOYA BY-AP4 is TWS earbuds who stands out with comprehensive upgradation. Bluetooth 5.0 enables highest wireless audio performance. Smart Touch Operation freely adjust the volume, switch songs or wake up the voice assistant in your fingertip. Rich, clear and warm sound effect, remarkable quality of calls. Single/Double Ear Mode Switchable - Accept anytime you prefer to wear one or two earbuds, without distinguish main or auxiliary. Ultra-low Latency is Ideal for gamers and video watching. 6 hours battery life, total up to 22 hours with the Type-C charging case. Equipped with indicator lights, and induction coil for wireless charging. Auto pair to device without taking out the earbuds.