boAt Rockerz 255 KKR are equipped with wireless technology and 10mm drivers. Together they ensure crystal clear wireless transmission in true HD sound. Redefine your style statement with Rockerz 255 KKR . With its up to 6 hours play time, you re sure to spend a quarter of your day with these earphones. Listen to music, take calls or activate voice controlled smartphone assistants with ease via its integrated controls! The magnetic earbuds secure the earphones from falling and keeps them safe when not in use. Experience the redefined symbol of wireless earphones and plug into nirvana.