製品仕様：

• Size: 147*46*28mm
• モデル番号: Telephone tester
• Model Number: C019
• 銘柄: ONLENY
• Features 7: Last number redial
• Features 6: Hangup button
• Features 5: FSK/DTMF dual system
• Features 4: Can check your telephone line fault
• Features 3: On/Off and hangup buttons
• Features 2: This set offers Last number redial
• Features 1: Easy to use
• Color: blue-gray