Abstract: A keyboard arrangement for an electronic device has multiple keys for inputting Chinese characters, multiple of the keys represent multiple combination vowels and all of the keys are arranged in a matrix form. The matrix of the keys are arranged in four key rows including a monosyllabic vowel row and three disyllabic vowel rows. The monosyllabic vowel row includes multiple keys arranged in a row and corresponding respectively to monosyllabic vowel phonetic symbols. Each disyllabic vowel row includes multiple keys arranged in a row and corresponding respectively to disyllabic vowel phonetic symbols those have a same transition vowel phonetic symbol and consonant phonetic symbols. The keys of the disyllabic vowel rows corresponding to a same monosyllabic vowel phonetic symbol are arranged in a column. Accordingly, an inputting method for Chinese characters applied with the keyboard arrangement is easy to learn and use.

Abstract: A tri-functional dual earphone device is disclosed. The structure includes an earphone device and a hand free receiver of the earphone device with circuit structure therein. One end of the earphone device is installed with a left earphone and a right earphone which are connected by a lead, and a hand free receiver suitable. A microphone, a volume control switch for adjusting volume freely, and a function selecting switch are installed in the hand free receiver. Another end of the earphone device is connected to a joint through the lead so as to provide for various mainframes, such as mobile phones (CDMA, TDMA, PHS, GSM, AMPS), digital cameras, digital TVs, MP3, GPRS, PDAs and other electronic devices or communication devices. Moreover, the earphone device has a freely moveable clip which are appended to the lead for clamping to the user.

Abstract: A tri-functional dual earphone device is disclosed. The structure includes an earphone device and a hand free receiver of the earphone device with circuit structure therein. One end of the earphone device is installed with a left earphone and a right earphone which are connected by a lead, and a hand free receiver suitable. A microphone, a volume control switch for adjusting volume freely, and a function selecting switch are installed in the hand free receiver. Another end of the earphone device is connected to a joint through the lead so as to provide for various mainframes, such as mobile phones (CDMA, TDMA, PHS, GSM, AMPS), digital cameras, digital TVs, MP3, GPRS, PDAs and other electronic devices or communication devices. Moreover, the earphone device has a freely moveable clip which are appended to the lead for clamping to the user.