Sony Wireless Stereo Headset with Mic Noise-Canceling MDR-EX31BN

--------------------------------------------------- 【Condition】 Please check the product description and photos for the condition. Some items may have not been tested or may show signs of use.

【Included Items】 Accessories are limited to those shown or mentioned in the product description. Items such as manuals, boxes, or cables are not included unless specifically stated.

【Product Specifications and Firmware】 Some Japanese domestic models may have limited functionality overseas. Please check compatibility before purchase.

【Voltage Compatibility】 Our products are selected to support international voltage ranges (e.g. 100–240V). However, please make sure your local voltage is compatible before use, as incorrect voltage may still cause 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 appropriate voltage or equipment. --------------------------------------------------- Type: Closed dynamic type Driver unit: Approx. 13.5 mm Mass: Approx. 34g Power source: Lithium-ion rechargeable battery (built-in) Charging time: Approximately 2.5 hours Type: Electret condenser type Directional characteristics: omnidirectional Noise canceling function available Battery life (continuous audio playback time): (NC ON) up to 9.0 hours, (NC OFF) up to 10.5 hours Battery life (continuous talk time): (NC ON) up to 6.5 hours, (NC OFF) up to 7.5 hours Battery life (standby time): (NC ON) up to 30 hours, (NC OFF) up to 100 hours Included accessories: Hybrid earpieces S, M, L (2 each), micro USB cable