Buy JBL JR300BT Kids Wireless on-ear headphones worth Rs. 2999 at Rs. 2873 Only. Safe, lightweight and sized for kids, the JBL JR300BT wireless headphones deliver up to 12 hours of legendary JBL sound and fun for the youngest music fans. Headphones are designed to ensure the volume is always below 85dB to protect hearing and easy controls can be operated without any help.