toshiba neckband bluetooth headphones | wireless bluetooth earbuds | bluetooth neckband headset w/deep base | 65ft working range | water/sweat resistant | 8-10 hours music & talk time | rze-bt600e (k) This Toshiba RZE-BT600E (K) Wireless Earbuds Features - WATER & SWEAT RESISTANT - 8-10 HOURS OF MUSIC PLAYBACK TIME WITH 65 FT WORKING RANGE - BUILT IN DUAL MICROPHONE WITH 8-10 HOURS OF TALK TIME - HIGH SOUND QUALITY WITH DEEP BASS TECHNOLOGY