Casio CP-16 headphones for electronic keyboards and pianos, Yamaha HP-AV600SB, 3m long, sky blue, with a large cable for peace of mind.

3.5mm mini plug (standard phone plug adapter included) Frequency response: 20-20kHz, Impedance: 32Ω, Sensitivity: 98dB (1kHz) Cable dimensions: 3.8mm x 3.0m, Plug shape: 3.5mm gold-plated straight stereo plug Designed for children aged 4-12 (stretchable for adults as well) Dimensions: 136mm x 165mm x 56mm - 145mm x 175mm x 56mm (excluding cord), Weight: 82g