In-Ear Monitor System KWS-EM1 Although unused, accessories are missing. The following is a product description. ■ Product Features ・Professional-level lossless sound quality: Supports 24bit/48KHz, providing clear and detailed sound quality. ・2.4GHz wireless system: Ensures a stable communication range of up to 30m (line of sight, no obstructions). ・Unlimited simultaneous connections: One transmitter can connect to an unlimited number of receivers simultaneously. ・Compact design: Clip-on design for easy waist mounting. ・Long-lasting battery: Rechargeable battery allows for 6 hours of continuous use. ・Latency switching: Selectable latency of 4.5ms in mono and 10.8ms in stereo. ・Group settings: Up to 4 groups can be used simultaneously, supporting operation with multiple people. ■ Specifications Sampling rate: 24bit/48KHz Frequency band: 2.4GHz Latency: stereo 10.8ms, mono 4.5ms Usable distance: 30 m (visible range) Recommended USB adapter: 5V 1A USB Type A Frequency response: 20 to 20K Hz, +1dB/-3dB Battery Model / Transmitter / Receiver: 603040 / 602040 Battery capacity Transmitter / Receiver: 780mAh / 450mAh Battery rated voltage: 3.7V Product size: 60x40x15 mm Product weight: Transmitter approx. 35g, Receiver: approx. 29g Package size: KWS-EM1: 117x78x41mm Package weight: KWS-EM1: approx. 0.145g Accessories: 3.5mm TRS mini male-to-male cable (81.5cm) x2, USB charging cable, TypeA to TypeCx2 (Y-cable) Country of origin: China