Professional mobile phone and mobile 
Product NO : custom K01
SongMing communication company is an custom rtos kosher mobile phone manufacturer,We offer exclusive custom development of Kosher phones compliant with Rabbinic law for clients, available in two OS variants: RTOS and Android. Below is an introduction to the features of our RTOS-based Kosher phones.
| RTOS Kosher Handset Key Requirements: |
| Real-Time OS, no Android APK runtime |
| Allowed functions only: Voice call, SMS text, contacts, optional Jewish Zmanim / Siddur, calculator, alarm clock |
| NO browser, NO app store, NO sideloading of applications |
| The wifi & Hotspot disabled in firmware |
| No camera (strict version; camera optional only with rabbi approval) |
| No MMS, no social apps, no games, no streaming media |
| All restrictions survive factory reset |
| Supports US LTE bands + VoLTE for AT&T / T-Mobile / Verizon or for all carriers in israel |
| FCC & CE certified |
| No GMS or Google services |
| Name | custom 4g kosher mobile phone |
| Chips | T127 Single-core CortexTM A7 processor, up to 1.0GHz |
| Memory | RAM 64MB+ROM 128MB |
| Expanded memory | Support, maximum support 32GB |
| Screen | 2.4 inch 240*320 16 million colors, TN |
| Camera | No |
| Flash lights | NO |
| Bands |
2G:850/900/1800/1900 3G:850/900/1900/2100 4G:B1/2/3/4/5/7/8/12/13/17/20/28A/28B/66/71（global bands)Adopts diversity antenna design to deliver superior radio frequency reception performance |
| Bluetooth | BT5.0 |
| FM radio | Support, Through the headset antenna |
| Card slots | Daul sim card+one T-F card |
| Speaker | 2030 Box speaker |
| Receiver | 1506 |
| Microphone | 0415 dual micorphone |
| Vibration motor | yes |
| Charging interface | Type-C |
| Earphone Interface | 3.5mm |
| Battery | 2000mAh |
| Charger adapter | No |
| Usb cable | Type-C 0.8M |
| Dimensions | 125.8*51.5*14.5mm |
| Language | English/hebrew （keypad Key English and Hebrew characters |
| Function | Answer record,hebrew calendar,hebrew language,kosher phone software，locked simcard, |