Sony Wireless Earphones Bluetooth up to 20 hours of continuous with 2017 Blue L WI-C400 compatible, playback, in-ear type, microphone, model, WI-C400

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.

【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary.

【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product.

【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. When there is an incoming call on the paired smartphone, the neck part will vibrate to notify you of the incoming call. Supports hands-free calling Adjustable cable length Achieves long-term wireless listening of up to approximately 20 hours Easily operate players such as smartphones on your neck No noise canceling function Charging time: about 4.5 hours Accessories: USB cable (approximately 50cm micro USB cable), earpieces (hybrid earpieces SS, S, M, L (2 each)), warranty, instruction manual, reference guide