Min. Order Reference FOB Price
3000 Pieces US$0.50-1.80 / Piece
Product Description
Product features: 1. telephone ring voice, you can put in another room in avoid missing telephone calls. 2. connect withe the telepone line directely. 3.DC 36V. 4. To help the hearing-impaired to recognize ring coming. 5.To increase the volume of telephone ring in noisy places. 6. The lamp ...