Fosi Audio PH04 Headphone Stereo Audio Metal Portable Headphone Female AUX Suitable for Use Supply 4-Channel Amplifier, Amplifier, Frame,

【Important Notice for International Buyers – Tomoayax Premium Audio Hi-Fi Japan】

■ Voltage Compatibility This product is designed exclusively for use in Japan (AC 100V, 50/60Hz).

Many regions use 120V or 220–240V. Using this product without a proper transformer in such voltage environments may result in malfunction, overheating, or serious and irreversible damage.

■ Plug Type This product uses a Japanese plug (Type A or B). A plug adapter may be required depending on your region.

■ Transformer Requirement (Very Important) A transformer is required for safe use.

A plug adapter only changes the plug shape and DOES NOT convert voltage. Using this product without a transformer may cause serious and irreversible damage.

■ Buyer Responsibility As this is high-end audio equipment, the buyer is fully responsible for confirming compatibility with their local voltage (100V / 120V / 220–240V) and usage environment before purchase.

■ No Return / No Refund Policy We do NOT accept returns or refunds for: ・Voltage mismatch (including 120V and 220–240V environments) ・Use without a transformer ・Plug incompatibility ・Damage caused by improper setup or usage

■ Liability We are not responsible for any damage, malfunction, or performance issues caused by improper use or incorrect voltage conditions.

■ Final Notice Please ensure full understanding of the above before purchasing. Use only under the correct voltage environment. [Share a Single Stereo Source] The 4-channel amplifier features four independent stereo high-power amp sections, each with its own volume knob for up to four outputs. This allows you to monitor your mix during training, use it live, and listen to TV at the same time. [Suitable for studios and stages] With its extremely compact and portable design, it's ideal for studios and stages where multiple headphones are used simultaneously. 【Superb Stereo Quality】This mini headphone amplifier features 3.5mm (6.35mm) input/output, contributing to a smooth connection between input and output. It's ideal for almost all types of headphones. It delivers the best stereo audio quality, and no 6.35-3.5mm adapter is needed to connect the headphone power amplifier to your headphones. 【Unique and Compact Design with Switch】This compact headphone power amplifier can be conveniently turned on/off anytime, anywhere with a power switch. It saves energy when enjoying high-quality stereo audio. 【4-Channel Stereo Headphone Amplifier】The Fosi Audio PH04 is a four-channel high-power stereo amplifier with output level control for each channel. It supports 3.5mm and 6.35mm headphones (a 3.5mm to 6.35mm adapter is required). A monitor distribution system is necessary when tracking multiple musicians at once or when everyone in a group wants to hear the playback. The compact and flexible PH04 can power up to four pairs of headphones and up to four independent volume controls.