Description: Item type:Headset Kids-Safe Volume Limiting Tech, Volume control technology ensures the sound is within levels recommended safe for kids. The headband can be folded, compact design fits perfectly in your bag or backpack. Bluetooth headphones works with smartphones, such as iPhone, iPad, Samsung, tablets and other Android devices. It also with a standard 3.5mm audio port, when you use aduio cable to connect your headphone and device, the bluetooth mode will be closed. Specification: Bluetooth Version: Bluetooth 5.0 Support Profile: Support A2DP/AVCTP/AVDTP/AVRCP/HFP/SPP/SMP/ATT/GAP/GATT/RFCOMM/SDP/L2CAP profile Working Distance Range: 20m Battery: 400mAh, Built-in rechargeable lithium-ion battery Charging Voltage: 5V/1A Charging Time: About 2.5hrs Talking/Music Time: LED lights turn on for about 7hrs/turn off for about 12hrs Impedance: 32Ω Sensitivity: 105±13db Package Include: 1 x Bluetooth headphones 1 x USB charging cable 1 x Audio cable 1 x User manual Note: The colors deviation might differ due to different monitor settings.