Puro Sound Labs BT2200 On-Ear Headphones Lightweight Portable Kids Earphones with Safe Wireless, Volume Limiting, Bluetooth and Noise Isolation for Smartphones/PC/Tablet - BT2200 Blue 85 dB volume governor to protect eardrums of young kids; integrated volume control from left ear cup. Choke-free and stumble-free wireless kids headphones with detachable cable to prevent possible injury by entanglement; durable yet non-toxic materials for child-proof play. Adjustable headband and cushioned ear cups, no sharp corners but comfort and safety for growing kids; snug and skid-proof design. 82% ambient noise isolation for high fidelity vocal in noisy occasions. Bluetooth 4.0 with 30 feet wireless range and easy one-touch pairing with compatible devices; 18 hours listening for long distance travel.