Professional mobile phone and mobile 
Product NO : custom k02
SongMing communication company is a customize 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 israel carriers |
| FCC & CE certified |
| No GMS or Google services |
| Name | 2.4 inch 4g kosher 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, |