Wireless Earbud Monitor System Wireless Earphone Monitor Ear Return System 518‑554MHz 110‑240VAU

Feature: 1. It"s reliable RF connection coverage up to 100m,and it has a signal‑to‑noise ratio of up to 90 dB provides clear and complete o. 2. No complicated menus, but simple volume and mixing control buttons, and transmitter and receiver are all metal shell, sturdy and durable. 3. There is no limit to the number of S3 receivers that can be used at the same frequency. 4. Small and portable, the wireless earbud monitor system has three different receiving modes for you to choice. 5. Each frequency band can use up to 8 sets of wireless monitoring systems at the same time. Specification: Item Type: Wireless Earbud Monitor System Material: Iron Shell Frequency Range: 518-554MHz Headphone Output Interface: 3.5mm Stereo Jack Transmitter Power Supply: DC12V300mA Receiver Working Time: More than 12 Hours Receiver Battery: 2xAA Batteries (Not Included) Operating Range: Approx. 100m109.4yd (Open Environment without Obstruction) RF Transmit Power: <10nW Dynamic Range: 90dB Harmonic Distortion: <1percent (1KHz, +-20KHz Frequency Deviation) Frequency Response: 40Hz-18KHz Headphone Output Power: 65m (32 OHM). Package List: 1 x S3 Transmitter1 x S3 Receiver1 x Power Adapter1 x Manual1 x Antenna2 Pairs x Ear Caps1 x Headset