For support with listening to the TV and conversations. This easy-to-use, behind-the-ear sound amplifier features intuitive operation with just a power button and volume control, making it easy for first-time users and seniors. Suitable for use on either the left or right ear. Features: ・6-level volume adjustment: Fine-tune with the dial ・Universal: Behind-the-ear design for a secure fit ・Gentle on the ears: Soft ear tips, 3 sizes (S/M/L) included ・Battery-powered (LR44): Convenient for use anywhere and portable ・Storage case included: Easy to carry, store, and keep clean Set Contents (as shown in the image) ・Main unit ×1 ・Ear tips (large/medium/small) each 1 pair ・Storage case ×1 ・Batteries for operation check LR44 ×2 ※The remaining battery life may be low for the operation check. We recommend replacing them soon. Specifications (from image) ・Maximum output sound pressure level: 125±3 dB ・Sound pressure gain: ≥35 dB ±5 dB ・Frequency range: Approximately 300〜4800Hz (approximate) ・Main unit dimensions: Approximately 55×55×16 mm / Weight: Approximately 10 g ・Color: Beige How to Use (Easy 3 Steps) 1. Set the batteries (LR44) according to the polarity. 2. Choose and attach the ear tip size. 3. Volume minimum → Power ON → Gradually increase the volume and adjust (to prevent feedback). Important Notes This product is a sound amplifier, not a medical device (hearing aid). If your symptoms are severe, please consult a medical institution. Usage time and effectiveness vary depending on the wearing condition, surrounding noise, and volume setting. Keep out of reach of small children and pets. Sound amplifier, behind-the-ear type / Battery-powered LR44 / Universal / 6-level volume adjustment / Ear tips S M L / With case / Senior, TV, conversation support / Easy operation, Beige